A student would like to estimate the mean length of words in a book report he just finished writing. He selects a
random sample of 20 words and determines the mean length to be 4 characters. Later, he discovers how to use a
built-in function of his word-processing program that reveals that the mean length of all words in his book report is
4.3 characters. Which of the following statements is true?
The population is all words in the book report and the sample is the random sample of 20 words.
The population is the random sample of 20 words and the sample is all words in the book report
The population is the mean length of all words in the book report and the sample is the mean length of the 20
randomly selected words.
The population is the mean length of the 20 randomly selected words and the sample is the mean length of all
words in the book report.

Answers

Answer 1

Answer:

the answer is a. The population is all words in the book report and the sample is the random sample of 20 words.

Step-by-step explanation:

got it right on edge

Answer 2

Answer: a. The population is all words in the book report and the sample is the random sample of 20 words.

Step-by-step explanation:


Related Questions

Anna bought a potted plant online. It cost $3.4 5plus 20% shipping and handling.What was the total cost

Answers

Answer:

Total cost = $4.08

Step-by-step explanation:

Given the following data;

Selling price = $3.4

Shipping and handling fee = 20%

To find the total cost;

First of all, we would determine the extra fee;

Extra fee = 20/100 * 3.4

Extra fee = 68/100

Extra fee = $0.68

Now, we can solve for the total cost using the formula below;

Total cost = selling price + extra fee

Total cost = 3.4 + 0.68

Total cost = $4.08

Plz Help I will give Brainliest

Answers

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Answer: 8.6 Ft^2

Explanation:

First find the area of the WHOLE square in FEET

2.5 x 4.5 = 11.25 ft

Then we need to find the area of the circle

r = radius

The formula is A = 3.14r^2

The radius is .9166, we can tell because the total distance from top to bottom is 22in meaning 1.83333 ft, meaning the diameter is 1.8333, then to get the radius we cut that in half.

A = 3.14(.9166^2

A = 2.64 Ft

Now we need to find the new total area

11.25 - 2.64 = 8.61 in ^2

Now we need to convert it to the nearest tenth of a square foot

8.6 Ft^2

I hope this helped  !

<!>   Brainliest is appreciated! <!>

-  Zack Slocum

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Jennifer invests $8,353 in a retirement account with a fixed annual interest rate of8% compounded 4 times per year. What will the account balance be after 15 years?

Answers

Answer:

Amount after 15 years = $27,406.45 (Approx.)

Step-by-step explanation:

Given:

Amount invested p = $8,353

Rate r = 8% = 0.08/4 = 0.02 per year (4 times)

Number of interest compounded n = 15 year x 4 = 60 times

Find:

Amount after 15 years

Computation:

A = p[1+r]ⁿ

Amount after 15 years = 8,353[1+0.02]⁶⁰

Amount after 15 years = 8,353[1.02]⁶⁰

Amount after 15 years = $27,406.45 (Approx.)

A garden sells soil by weight, rounded to the nearest tenth of a pound, Elizabeth has 43.479 pounds of soil. What is the weight rounded to the nearest tenth of a pound?

Answers

Answer: 43.48 Pounds

Step-by-step explanation:

Given

Elizabeth has 43.479 pounds of soil

Rounding off to the nearest tenth of a pound

Consider 79 which occurs after the decimal place

Converting it to 80 as it is nearest to 80

So, we can write 43.479 as 43.48 Pounds

Find the slope of the line shown below.

Answers

Answer:

slope is -2

Step-by-step explanation:

trust me :)

Answer: The slope would be -2

plea help I will give brainiest

Answers

Answer:b

Step-by-step explanation:

l x w x h

slope intercept form of points (0,4) and (1,3

Answers

Answer:

y = -x+4

Step-by-step explanation:

First find the slope

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

   = ( 4-3)/(0-1)

   = 1 /-1

  = -1

The y intercept is (0,4) or 4

The slope intercept form is

y = mx+b where m is the slope and b is the y intercept

y = -x+4

Mr. Jennings is shopping for a car loan. He wants to buy a car that costs $18,000. He plans to pay $5,000 in cash and get a loan for the rest. If the annual interest rate on the loan is 5%, how much interest will he pay in the first year?

Answers

Answer:

$650

Step-by-step explanation:

Interest = amount of the loan x interest rate x time

Amount of the loan = price of the car - cash payment

$18,000 - $5,000 = $13,000

interest rate = 5%

time = 1 year

$13,000 x 0.05 x 1 = $650

Jane has 3 ¾ cups of yogurt that she wants to split into smaller containers. Each container can hold ¾ cup of yogurt.

Answers

Answer:

5 containers

Step-by-step explanation:

Converting to a decimal can make questions like this easier to solve.

3 3/4 = 3.75

3/4= .75

3.75 cups divided by .75 cup containers results in 5 containers needed.

1/4 of 7 and 1/3 of 7

Answers

Answer:

1/4 of 17 =4.25 in decimal form

1/3 of 7 = 2.3333 in decimal form

Step-by-step explanation:

I hope I helped

2x - 4 = -8 what is the value of x?

Answers

Answer:

x = -2

Step-by-step explanation:

2x = -8+4

2x = -4

x = -2

CHECK

-4 - 4 = -8

x^4 + 25 = 26x^2

please answer quick. I'll give brainliest rothe first person​

Answers

[tex]{ \leadsto{ \sf{ \green{ {x}^{4} + 25 = 26 {x}^{2} }}}} \\ \\ { \leadsto{ \sf{ \green{ {x}^{4} - 26 {x}^{2} + 25 = 0}}}} \\ \\ { \sf{ \underline{ \blue{let \: \: {x}^{2} \: be \: equal \: to \: a}}}}[/tex]

[tex]{ \leadsto { \green{ \sf{ {a}^{2} - 26a + 25 = 0}}}} \\ \\ { \leadsto{ \green{ \sf{ {a}^{2} - (a + 25a) + 25 = 0}}}} \\ \\ { \leadsto{ \green{ \sf{ {a}^{2} - a - 25a + 25 = 0}}}} \\ \\ { \leadsto{ \green{ \sf{a(a - 1) - 25(a - 1) = 0}}}}[/tex]

[tex]{ \leadsto{ \sf{ \green{(a - 1)(a - 25) = 0}}}} \\ \\ { \sf{ substituting \: value \: of \: a}} \\ \\ { \rightarrow{ \sf{ \blue{( {x}^{2} - 1)( {x}^{2} - 25) = 0}}}} \\ \\ { \sf {{x}^{2} = 1}} \\ { \sf{ \underline{x = \: ± \: 1}}} \\ \\ \\ { \sf {x}^{2} = 25} \\ { \sf{ \underline{x = \: ± \: 5}}}[/tex]

which is the equation of a hyperbola centered at the origin with focus ( 0,4) and vertex (0,sqaure root 12)

Answers

Answer:

the equation of the hyperbola is y^2/12-x^2/4=1

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

The ans above is A

A dune buggy company rents dune buggies at the beach. They charge an initial fee of $30 plus
$10 for each hour the buggy is rented. Let x represent the number of hours and y represent the
total cost of the rental.
1. If Clint rents a dune buggy for 5 hours, how much should he expect to pay?

Answers

Answer:

$80

Step-by-step explanation:

10x + 30 = y

He wants to rent it for 5 hours, so we replace x with 5.

10(5) + 30 = 80

He should expect to pay $80 for the rental.

La suma de dos números enteros que tienen signos diferentes es:

Answers

1 Si los sumandos son del mismo signo, se suman los valores absolutos y al resultado se le pone el signo común. 2 Si los sumandos son de distinto signo, se restan los valores absolutos (al mayor le restamos el menor) y al resultado se le pone el signo del número de mayor valor absoluto.

Answer:

Hhhhhhhhnnnnnnnnnn

Step-by-step explanation:

Bbb

Find the slope of the line that passes through (4, 1) and (9, 8).

Answers

answer:

the slope is 7/5

what do you call the 9 in the statement 30% of 9 is 3

Answers

Answer: You call the 9 a base.

Step-by-step explanation: 3 is the percentage or part of the whole or base.

Answer:

9 is the base of the statement.

Step-by-step explanation:

Since 30% is the rate which shows a percent symbol. 9 is the base which is the basis of the statement. Then 3 is the percentage you got from the 30% of 9.

What does this mean?

Answers

Answer:

Plug in -3 as x

Step-by-step explanation:

f= -4(-3)+1

A bus traveled 744 miles between two cities. The bus travels at a speed of 48 mph. Write a multiplication equation and then solve to find out how many hours it took for the bus to arrive at its destination

Answers

Answer:747

Step-by-step explanation:

Please Help Me Answer:
-6n - 5 = 31

Answers

Answer:

n = - 6

Step-by-step explanation:

Given

- 6n - 5 = 31 ( add 5 to both sides )

- 6n = 36 ( divide both sides by - 6 )

n = - 6

Answer:

n= -6

Step-by-step explanation:

-6n=31+5

-6n=36

n=36÷-6

n= -6

what is the distance between (-6-4) and (-5,-4)​

Answers

Step-by-step explanation:

take as if this points are on a line segment AB

Dab = square root of ( xa - xb) ^2 + ( y a- yb) ^2

= square root of [ (-6) - (-5) ]^2 + [ (-4) - (-4) ]^2

= square root of (-1)^2 + (0)^2

= square root of 1 + 0

= square root of 1

= 1 units

The distance from AB is 1 unit

Find the Area:
16 m
.
12 m

Answers

3.14 x 8^2 = 200.96 (divided by) 2 = 100.48

1/2 (8 x 12) = 48 x 2 = 96

100.48 + 96 = 196.48

A = 196.48

Which expressions show the volume and the surface area of this cube- shaped packing box?

Answers

Answer:

top right

Step-by-step explanation:

I cant see the bottom right but the top has the proper F(t)^3 and 6 surfaces

Line n and points A through E are shown in the coordinate plane below.
5
a
D
A
с
E
5
Ayako claims that there are centers of dilations through which a dilation of line n by a factor of 1.5 leaves
Line n unchanged. Determine whether each point below represents a center of dilation that supports
Ayako's claim. Select Yes or No for each point.
Yes No
Point AOC
Point BOO
Point COO
Point DOO
Point EOC

Answers

Answer:

The points that represent a center of dilation that supports Ayako's claim are;

Point A; Yes

Point D; Yes

Step-by-step explanation:

When the figure being dilated has a segment or side that rests on the center of dilation, the corresponding side or segment of the image of the preimage of the figure will both be located on the same line

Therefore, given that the line 'n' is infinite, the centers of dilation through which a dilation of the line 'n' will form an image that will be on the same line as line 'n' are centers of dilation located on line 'n', which are;

Point A and Point D

hey can you solve this I'm weird at maths

[tex] \sqrt{144} = 12 \times x[/tex]
what's x ?​

Answers

Answer:

The square root of 144 = 12

Step-by-step explanation:

12 X 12 = 144

A square root of a number is a value that, when multiplied by itself, gives the number.

Answer:

x=1

Step-by-step explanation:

and yes you r weird

...

The width of a rectangle is one less than one third of the length. The perimeter of the rectangle is 78 cm. What are the dimensions of the rectangle?

Answers

Answer:

26

Step-by-step explanation:

just use a calculator or search it up

Which expression is equivalent to 3x+2

Answers

Answer:

(3 x X) + 2

Can be a possible way if you factor it out I think.

A bill for the repair of a laptop was $249. The cost of the parts was $84, and the labor charge was $55 per hour. How many hours did it take to repair the laptop?​

Answers

3 hours.
Explanation
249 total - 84 already paid (for parts) is
165.
165
divided by
55 dollars an hour
is
3 hours worked on repairing.

What is the inverse (opposite) operation that you will use to solve this equation for c+3=4 and the answer.

Answers

Answer:

1

Step-by-step explanation:

As we know that addition and subtraction are inverse operations, as are multiplication and division.

The given equation is c+3=4

To solve such equations we isolate the unknown( to keep it either to the left or right of = sign) as c = 4-3  

This is also called transposing and the sign of the transposed value changes.

Hence, c = 4-3 = 1

Please help me solve this

Answers

Answer:

x=61

2x+3 = 125

x-6 = 55

Step-by-step explanation:

The two angles shown form a straight line so they add to 180

2x+3 + x-6 = 180

Combine line terms

3x-3 =180

Add 3 to each side

3x-3+3 =180+3

3x=183

Divide each side by 3

3x/3 =183/3

x =61

The angle on the left is 2x+3

2x+3 = 2*61+3 = 122+3 = 125

The angle on the right is x-6 = 61-6 = 55

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