The mean and the standard deviation of a normal
population are called
. The mean
and the standard deviation of a random sample
from a population are called
95%
DONE

The Mean And The Standard Deviation Of A Normalpopulation Are Called. The Meanand The Standard Deviation

Answers

Answer 1

Answer:

(B) Parameters

(A) Statistics

Step-by-step explanation:

edg 2020

Answer 2

The mean and the standard deviation of a normal population are called parameters, and of a random sample from a population are called statistic

Normally distributed data In a normal distribution, data is symmetrically distributed with no skewNormally distributed data is the distribution of probability which is symmetric about the mean.Normal distributions are symmetric, unimodal, and asymptotic, and the mean, median, and mode are all equal

How to solve this problem?

The steps are as follow:

The mean of the data is the average value of the given data. The standard deviation of the data is the half of the difference of the highest value and mean of the data set.Those numbers who summarize information about sample are called statistic.The  numbers which summarize information about population are called parameters.The  numbers which summarize information about the sample are called statistic.

Therefore, the mean and the standard deviation of a normal population are called parameters, and of a random sample from a population are called statistic

Learn more about Normally distributed data here:

https://brainly.com/question/1407349

#SPJ2


Related Questions

a number divided by three less two is at most two

Answers

x ≤ 12

Solution:

Let us take the number be x.

A number : x

A number divided by three : [tex]$\frac{x}{3}[/tex]

A number divided by three less two : [tex]$\frac{x}{3}-2[/tex]

A number divided by three less two is at most two : [tex]$\frac{x}{3}-2\leq 2[/tex]

Now, simplify the inequality,

[tex]$\Rightarrow\frac{x}{3}-2\leq 2[/tex]

Add 2 on both sides of the inequality,

[tex]$\Rightarrow\frac{x}{3}-2+2\leq 2+2[/tex]

[tex]$\Rightarrow\frac{x}{3}\leq 4[/tex]

Multiply by 3 on both sides of the equation,

[tex]$\Rightarrow\frac{x}{3}\times3\leq 4\times3[/tex]

[tex]$\Rightarrow x\leq 12[/tex]

Hence x ≤ 12.

Final answer:

The question requires setting up an inequality to express the condition 'a number divided by three less two is at most two.' The solution of the inequality reveals that the number in question is any number less than or equal to 12.

Explanation:

The student's question involves a number theoretical concept that requires setting up and solving an inequality. To understand the requirement of 'at most two' when a number is divided by three and reduced by two, we would establish an inequality as X / (3-2) ≤ 2, where X is the unknown number. This inequality represents the condition mentioned in the question, which restricts the value of X to a certain range after the operations are performed.

When working through the inequality, we aim to isolate X to determine the possible values it can hold. Here, we would start by adding two to both sides of the inequality to remove the subtraction, leading to X / 3 ≤ 4. Multiplying both sides by 3 gives us X ≤ 12. This tells us that the number in question is any number that is less than or equal to 12.

Understanding mathematical operations and the interpretation of numerals in context is necessary to solve such problems. Specifically, discerning the difference between an 'at least' and 'exactly' reading of numerals impacts the formation and solution of such inequalities.

find the x-intercepts and y-intercepts of 10x+6y=-4

Answers

The x intercept is [tex](\frac{-2}{5}, 0)[/tex]

The y intercept is [tex](0, \frac{-2}{3})[/tex]

Solution:

Given equation is:

10x + 6y = -4

The x intercept is the point where the line crosses the x axis

The y intercept is the point where the line crosses the y axis

Find x intercept:

Substitute y = 0 in given equation

10x + 6(0) = -4

10x = -4

[tex]x = \frac{-4}{10}\\\\x = \frac{-2}{5}[/tex]

Thus the x intercept is [tex](\frac{-2}{5}, 0)[/tex]

Find y intercept:

Substitute x = 0 in given equation

10(0) + 6y = -4

[tex]6y = -4\\\\y = \frac{-4}{6}\\\\y = \frac{-2}{3}[/tex]

Thus the y intercept is [tex](0, \frac{-2}{3})[/tex]

12 Given: JM MN, L is the midpoint of JN

Prove: JLM NLM

Statements

Reasons

Answers

Answer:

Statements and reasons for the proof is shown in the attachment

Step-by-step explanation:

The statements and reasons are as shown in the attached file.

The knowledge of congruency in triangles is applied.

Find the diagonal of the rectangular solid. l=4 w=5 h=3

Answers

Answer: d≈7.07

Step-by-step explanation:

l=4 w=5 h=3, then d≈7.07

[tex]d=\sqrt{l^{2}+w^{2} +h^{2} } =\sqrt{4^{2}+ 5^{2}+ 3^{2} } =7.07[/tex]

Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY! As well as a great Valentines Day! :-)  

- Cutiepatutie ☺❀❤

What plus what equals 24 if the second number subtracted from the first number equals 2?

Answers

Answer:

13+11

Step-by-step explanation:

13-11=2 and 13+11=24

Roxy has some necklaces. Kelly has 4 times more rings than Roxy. Together they have 35. How many necklaces does Roxy have?

Answers

Answer:

Roxy has 7 necklaces.

Step-by-step explanation:

35 = n + 4n

35 = 5n

5  =   5

n = 7

Final answer:

The problem is a simple algebra problem related to ratios. By setting up an equation according to the given information, we find that Roxy has 7 necklaces.

Explanation:

This is a math problem concerning ratios and simple algebra. Let's denote the number of necklaces that Roxy has as R. Then, Kelly has 4 times more rings, which is 4R. Together they have 35. So, the equation can be set up as:

R + 4R = 35

Combine like terms, you get:

5R = 35

Then, you can solve for R by dividing both sides by 5:

R = 35/5 = 7

So, Roxy has 7 necklaces.

Learn more about Simple Algebra:

https://brainly.com/question/22399890

#SPJ12

4.) Mr. Souders purchased a car priced at $9800. He paid $500 down and
agreed to a monthly payment of $250 per month for 48 months.
Including the down payment, what is the total cost of the car?
Please show your work.

Answers

Answer:

The total cost of the car including the down payment  = $12,500

Step-by-step explanation:

The Original price of the car  = $9800

The amount paid for down payment  = $500

Also, the monthly payment  amount  = $250

Now, the number of months, the amount is paid  = 48 months

So, the TOTAL amount paid in 48  months

= 48 x ( Amount paid each month)   = 48 x ( $250)

= $12,000

So, the TOTAL PRICE of CAR paid  = Total amount paid in 48 months  + The amount paid for down payment

= $12,000 +  $500

= $12,500

Hence, the total cost of the car including the down payment  = $12,500

brainliest and 100 pts!!!!!!!!!!!!!!!!!!!

Natalie's coach has a stopwatch that records times to the nearest thousandth of a second. Natalie ran a given distance in 25.453 seconds.

What is Natalie's time rounded to the nearest tenth of a second?

Enter your answer in the box.

___s

Answers

The answer is 25.6 seconds

Answer:

25.5

Step-by-step explanation:

(THIS ONE FIRST)The volume of a cube is 27 cubic inches. Which expression represents s, the length of a side of the cube?

Recall the formula Cube volume = s cubed.
s = RootIndex 3 StartRoot 27 EndRoot
s = 3 + 3 + 3
s = StartRoot 27 EndRoot
s = 3 times 3 times 3 times 3

Answers

Yo sup??

The answer to your question is option 1 ie

s=rootindex 3 startroot 27 endroot

because we know that

Volume of cube=s^3

27=s^3

s=27^1/3

Hope this helps.

Answer: A? It’s A

Step-by-step explanation:

Elijah is looking up to the top of the Washington Monument. If the monument is 555 feet tall and the
angle of elevation from the point on the ground where Elijah is standing to the top is 74', how far is
he standing from the base of the monument?

Answers

Answer:

Elijah is  standing from the base of the monument 159.14 feet

Step-by-step explanation:

see the attached figure to better understand the problem

In the right triangle ABC

[tex]tan(74^o)=\frac{BC}{AC}[/tex] ----> by TOA (opposite side divided by the adjacent side)

substitute the given values

[tex]tan(74^o)=\frac{555}{AC}[/tex]

solve for AC

[tex]AC=\frac{555}{tan(74^o)}=159.14\ ft[/tex]

therefore

Elijah is  standing from the base of the monument 159.14 feet

An oil barrel contains 31.6 gallons of oil. One gallon is equal to 3.8 L. How many liters of oil are in the barrel? Round your answer to the nearest tenth.

Answers

120.08 but nearest tenth would be 120.1 L

Final answer:

To convert gallons to liters, use the conversion factor of 1 gallon being equal to 3.8 liters to find that there are approximately 120.1 liters of oil in the barrel.

Explanation:

To convert gallons to liters, we need to use the conversion factor of 1 gallon being equal to 3.8 liters.

Calculate the total liters in the barrel: 31.6 gallons * 3.8 liters/gallon = 120.08 liters

Therefore, there are approximately 120.1 liters of oil in the barrel.

Which statements are true? Check all that apply.
Please answer :)

Answers

Answer:

[tex]\sqrt{1.8}<1.8[/tex]

[tex]\sqrt{1.8}>1[/tex]

[tex]\sqrt{1.8}<\sqrt{1.9}[/tex]

[tex]1.3<\sqrt{1.8}<1.4[/tex]

[tex]\sqrt{1.8}+\sqrt{1.9}[/tex]

Step-by-step explanation:

[tex]\sqrt{1.8} = 1.34[/tex]     [tex]\sqrt{1.9} = 1.38[/tex]       [tex]\sqrt{1.8}+\sqrt{1.9}=1.34+1.38=2.72[/tex]

[tex]\sqrt{1.9}-\sqrt{1.8}=1.38-1.34=0.04[/tex]

1.

[tex]\sqrt{1.8}<1.8[/tex]

It is true. since 1.34<1.8

2.

[tex]\sqrt{1.8}>1[/tex]

It is true. Since 1.34>1

3.

[tex]\sqrt{1.8}<\sqrt{1.9}[/tex]

It is true. since 1.34<1.38

4.

[tex]1.3<\sqrt{1.8}<1.4[/tex]

It is true. Since 1.3<1.34<1.4

5.

[tex]\sqrt{1.8}+\sqrt{1.9}[/tex]>2

It is true. Since 2.72>2

6.

[tex]\sqrt{1.8}-\sqrt{1.9}>0.1[/tex]

It is false. Since 0.04<0.1

This line plot shows something about trails in a state park. What is true about the data in this line plot?

Answers

Answer:

2 thirds of the trails are longer than 5 Km

Step-by-step explanation:

Final answer:

A line plot that forms a straight line indicates a direct relationship between the two variables plotted. A graph that shows less deviation from the line of best fit is a good candidate for linear regression. Line graphs are typically used to show trends over time.

Explanation:

When considering a line plot or any graphical representation of data such as scatter plots or line graphs, the main goal is to uncover the underlying pattern or relationship presented. If the data, when graphed, forms a straight line, it suggests a direct relationship between the variables involved. This implies that as one variable increases, the other variable either increases or decreases by a consistent rate. For instance, if one plot shows a line from (0,8) to (3,2), there's a decrease as the first variable increases. Conversely, a line from (0,2) to (3,2) or from (0,3) to (3,3) suggests no change, indicating a directly horizontal line and therefore no relationship. When determining good candidates for linear regression, a scattering of points closely aligned in a straight line pattern, with little deviation from the line of best fit, is indicative of such. Linear regression is more accurate when the variance around the line of best fit is minimal, as seen in the second graph described. Line graphs specifically are useful for showing data trends over time, where the x-axis typically represents time and the y-axis represents another variable.

Solve each equation. Record your work and check your solution.
a. 5(x-2)+(-9)= -7(1-x)

Answers

The solution for equation is x = -6

Solution:

Given equation is:

[tex]5(x-2) + (-9) = -7(1-x)[/tex]

We have to solve the equation

According to Bodmas rule, if an expression contains brackets ((), {}, []) we have to first solve or simplify the bracket followed by of (powers and roots etc.), then division, multiplication, addition and subtraction from left to right

Therefore, solve for brackets in given equation

[tex]5(x-2) + (-9) = -7(1-x)\\\\5x - 10 -9 = -7 + 7x[/tex]

Solve for terms in left hand side of equation

[tex]5x - 19 = -7+7x[/tex]

Move the variables to one side and constants to other side

[tex]7x -5x = -19+7\\\\2x = -12\\\\Divide\ both\ sides\ by\ 2\\\\x = -6[/tex]

Thus the solution for equation is x = -6

Russell randomly surveys seventh-graders in his school and finds that 6 of 30 attend summer camp. If there are 200 seventh-graders in his school, about how many are expected to attend summer camp? Enter your answer in the box.
----------eighth -graders

Answers

Answer:

40

Step-by-step explanation:

6 of 30 is the ratio 6 to 30 or 6/30.

6/30 reduces to 1/5

The survey shows that 1/5 of the students attend summer camp.

1/5 of 200 = 1/5 * 200 = 40

what is a numerator​

Answers

Answer:

A numerator is the number that you actually have, the top number in a fraction

Step-by-step explanation:

A numerator is the top number on a fraction, such as 1 in 1/2.

I had trouble at this for a while when I was younger, so hopefully this helps (=>ω<=)

what is an equation for the line that passes through the points (0,-4) (7,11) in slope-intercept form

Answers

Answer:

y=15/7x-4

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(11-(-4))/(7-0)

m=(11+4)/7

m=15/7

y-y1=m(x-x1)

y-(-4)=15/7(x-0)

y+4=15/7(x)

y+4=15/7x

y=15/7x-4

x squared equals x plus 56

Answers

Answer: 8 squared equals 8 plus 56

Step-by-step explanation:

What you would do is find a number squared that is greater than 56. I used 8 because 8 squared is 64. So i squared that and got 64, I then subtracted 8 from 64 because you would need to use the same x value in the equation and that lead me t getting 56. All in all x=8.

Can someone explain the differences in discrete vs. continuous data and how these are graphed differently on a histogram?

Answers

Answer:

Discrete data means that it is not continuous and is graphed as a line with dashes.Continuous data goes on forever and is usually linear. It is graphed as a straight line all the way through.

Step-by-step explanation:

Hope that helps.

Nancy joined Movies Extraordinaire for a $8 fee and an agreement to pay $1.99 per movie she rents. The equation for her total cost is y = 1.99x + 8. Predict her total cost if she rents 25 movies.

$57.75

$58.25

$60.85

$65.95


Answers

The answer is $57.75.

Step by Step:

Take the amount of movies ( x ) multiplied by the cost of each ( $1.99 ) and add the fee. ( $8 )

Marta's fruit stand sold x oranges on Thursday and twice as many on Friday. All together, on both days, she sold 108.
Which bar diagram represents the equation?

Answers

Answer:

Option A

Step-by-step explanation:

It is given that Marta sold [tex]$ x $[/tex] oranges on Thursday.

She has sold twice as many as on Friday. Therefore, she must have sold [tex]$ 2x$[/tex] oranges on Friday.

And the total amounts to 108.

That is, [tex]$ x + 2x = 108 $[/tex]

Hence, the table which has the total on the top and the entities on the bottom line would be the answer which is Option A.

Answer:

A

Step-by-step explanation:

Thursday is x because she sold x oranges. Friday is 2x because she sold double the amount she sold on Thursday. Then we add them together to make 108.


If A = (10, 4) and B = (2, 19), what is the length of Ab?
O
A. 17 units
O
O
B. 12 units
O
C. 23 units
D. 15 units

Answers

The length of AB is A. 17 units

Mrs Smith made popcorn for 9 people. Each scoop of popcorn kernels made 2 cups if popcorn. She made 6 scoops total. How much popcorn did each person have if it was divided equally?

A: 3/8
B: 3/4
C: 1 1/3
D: 1 2/3

Answers

3/8 it has to be that answer

Answer:a

Step-by-step explanation:

What is the order of this matrix.

Answers

Answer:

the order of the matrix is 5 x 3

5 rows and 3 columns

in Eduardo’s collection, the number of butterflies is 12 more than twice the number of moths. If there are x moths, write an expression to represent the number of butterflies he has.

Answers

Answer:

An expression to represent the number of butterflies he has is  y = 12 + 2x

Step-by-step explanation:

Let the number of butterflies in Eduardo’s collection be  y

Then according to the question

The number of moths = x

The number of butterflies y = 12 + twice the number of moths---------(1)

Twice the number of moths = [tex]2 \times \text{number of moths}[/tex]

Twice the number of moths = 2x -----------------------(2)

Substituting equation (2) in (1)

The number of butterflies y = 12 + 2x

Kelly has a rock garden with a length of 6 feet. She constructs a scale model of the rock garden using
the scale 1 inch:2 feet.
What is the length of the garden in her model? Show your work, including your proportion.
If the width is 5 inches for the scale model and the scale is still 1 inch to 2 feet, will her scale
model drawing fit on a piece of paper that is 8.5 inches by 7 inches? Why or why not?
Answer:

Answers

Answer:

3 inches

It will fit in the paper.

Step-by-step explanation:

In the scale drawing the 2 feet original length is converted to 1 inch drawing length as Kelly constructs a scale model of the rock garden using the scale 1 inch  : 2 feet.

Now the proportion is 1 inch : (2 × 12) inches = 1 : 24 {Since 1 foot is equivalent to 12 inches}

Now, maintaining that scale ratio the 6 feet original length of the garden will be converted to [tex]\frac{1}{24} \times (6 \times 12) = 3[/tex] inches in the drawing.

It is also given that the width of the garden in the scale model is 5 inches and the scale is still 1 inch : 2 feet.

Therefore, the dimensions of the garden in the model is 3 inches by 5 inches and this will fit on a piece of paper that is 8.5 inches by 7 inches. (Answer)

Rafeal wants to know if there is a single transformation that will move trapezoid JKLM onto trapezoid PQRS Below

Which Statement is true?
A. A 90 counterclockwise roation of trapezoid JKLM about the origin will move angle L onto angle R
B. A 180 rotation of trapezoid JKLM about the origin will move angle J onto angle R
C. A reflection of trapezoid JKLM across the y-axis will move angle K onto angle R
D. There is no transformation Rafael can use because trapezoids JKLM and PQRS are not congruent

Answers

A. A 90° counterclockwise rotation of trapezoid JKLM about the origin will move angle L onto angle R.

Step-by-step explanation:

Since both the trapezoids, trapezoid JKLM and PQRS are congruent, we can do any transformation, may be rotation, reflection and translation.

A 90° counterclockwise rotation of trapezoid JKLM about the origin will move angle L onto angle R is the true statement others are incorrect statements.

When the Preimage is rotated 90° counterclockwise rotation, then its coordinates (x,y) changed into (-y,x)  

x−117+120 Simplify the expression

Answers

Answer:

Step-by-step explanation:

x-117+120

x+3

State whether the number is a solution to the given inequality
X>-17;-14

Answers

Answer:

  it is a solution

Step-by-step explanation:

When you put the number where x is, you get ...

  -14 > -17 . . . . a true statement

Since this statement is true, x=-14 is a solution.

Final answer:

The number -14 is a solution to the inequality X > -17 in mathematics as it falls within the range of numbers greater than -17.

Explanation:

In the realm of mathematics, inequalities define a range of values that can be a solution. In this case, the inequality is X > -17. This means any number greater than -17 is a solution to the inequality. If we consider -14, it falls within this range because -14 is greater than -17. Therefore, yes, -14 is a solution to the given inequality.

Learn more about Inequalities here:

https://brainly.com/question/32625151

#SPJ2

A gondola plans to pick up 1410 ft3 (110 tons) of iron ore to deliver to a manufacturing plant. The 41-ft gondola has a width of 9.5 ft and a height of 5 ft.

Answers

Answer:

Vgondola=lwh

                 =(41)(9.5)(5)

                 =1947.5 ft3

Step-by-step explanation:

plz give me brainliest

Other Questions
The remaining balance on an amortized loan is paid down evenly over the life of the loan. For example, if you borrow $20,000 today on a 60-month amortized loan then your remaining balance reduces by 20,000/60.O TrueO False F1 = (3.3,-0.5) and F2 = (-3.8,-0.3) where all components are in newtons. What angle does the vector F1 + F2 make with the positive x-axis? The angle is measured counterclockwise from the positive x-axis and must be in the range from 0 to 360 degrees. A certain radioactive isotope has a half life of 6 hours. The starting amount is 100 grams. Write an exponential function to model this scenario. How much of the isotope remains after 12 hours? You invite a group of people to your home for a wine-tasting event, but you have not figured out how they will get home afterward. According to research, you should be concerned about this because: Find the area of a circle with a circumference of 81.68cm Find the x-intercepts of the parabola withvertex (1,-13) and y-intercept (0.-11).Write your answer in this form: (X1.),(X2,92).If necessary, round to the nearest hundredth.Enter the correct answer. End of day/Distance from home1 /3832 /6823 /11324 /15035 /19066 /2196- In the table, Adam recorded the miles he traveled each day while traveling from his home to California. Calculate the average rateof change between day 1 and day 3.A)283 miles per dayB)375 miles per dayC)450 miles per dayD)566 miles per day The number of hours sixth grade students took to complete a research project was recorded with the following results. Hours Number of students (f) 4 15 5 11 6 19 7 6 8 9 9 16 10 2 A student is selected at random. The events A and B are defined as follows. A = event the student took at most 9 hours B = event the student took at least 9 hours Are the events A and B disjoint? Yes No Whats is 97 square root A in diameter rod of 5 in length is being considered as part of a mechanicallinkage in which it can experience a tensile loading and unloading during application. Thematerial being considered is a standard aluminum bronze with a Youngs modulus of 15.5 Msi.What is the maximum load the rod can take before it starts to permanently elongate?Considering the rod is designed so that it does not yield, what is the maximum energy that therod would store? [Hint: You can look up some properties of aluminum bronze in your machinedesign book]. If the 4th and 7th terms of a GP are 250 and 31250 respectively. Find the two possible values of a and r Is it possible to show that G is congruent Habitual coffee drinkers often acquire a classically conditioned response to the smell, sight, or taste of coffee. Even after drinking a cup or two of decaffeinated coffee, which is obviously missing the active ingredient of caffeine, they experience increased arousal and alertness. In this example, the smell, taste, and sight of the decaffeinated coffee is the _____, and the response to it is called _____. Every jump a game piece makes measures 8/9 . The piece starts at point A = 7 and jumps to the right. As soon as the piece jumps over B = 24, it switches direction and jumps to the left. The piece then stops at point A. How many jumps did the game piece take? In the article, "Alzheimer's preventative drug hope", researchers discovered a neurostatin that could be used as a preventative measure to stop the condition appearing in the first place.A) True B) False Which of the following statements is true? a. The right brain helps people analyze and verbalize. b. Right and left brain concepts are meaningless. c. The left brain helps people understand analogies and imagine things. d. The right brain helps people understand analogies and imagine things. What is one method or line of reasoning that scientists could NOT use when testing the hypothesis that dolphins and Ichthyosaurs form a monophyletic group? The goal of value chain analysis is to identify processes in which the firm can add value for the customer and create a competitive advantage for itself, with a ________ or _______________. The figure shows the 50 - foot side of a house and a proposed rectangular garden to be fences in on 3 sides. The 3 sides, a,b, and x will be made of 40 feet of fencing. Which of the following is an expression for a in terms of x? A. 2x+40B. 2x-40C. 40-2xD. 40-x+xWhat is the area, in square feet, for the garden if 40 feet of fencing are used and x=15? Whats the oxidation state of Se in H2SeO3