A book publisher counted the words on each page of a series of books. They found that the number of words per page followed a normal distribution with a mean of 265 words and a standard deviation of 25 words.

What percentage of the pages contain fewer than 215 words?

Answers

Answer 1

Answer:

The answer is 2.5%

Step-by-step explanation:

Took test on edmentum and made 100%.

Answer 2

2.2% percentage of the pages contain fewer than 215 words.

What is a normal distribution?

The normal distribution is defined as a probability distribution that is symmetric about the mean, indicating that data close to the mean are more systematic in occurrence than data distant from the mean. In pictorial form.

The number of words per page in the book is normally distributed, Normal distribution is given as,
[tex]z = \frac{x-\mu}{\sigma}[/tex]

Where, x = number of words per page., µ = mean, σ = standard deviation
From given, µ = 265 words , σ = 25 words

Probability for the number of pages in the book is less than 265 words,

P( x < 215)
For,  x = 25,
z = (215-265)/25 = -2

From the normal distribution table, the probability of the z score is 0.022


The percent of pages in the book that are less than 215 words in length is 0.022 × 100 = 2.2%.

Thus, 2.2% percentage of the pages contain fewer than 215 words.

Learn more about Normal distribution here:
https://brainly.com/question/15103234
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Related Questions

Hunter and Manny work at a horse farm. On Thursday, they split cleaning the small horse stalls, but Manny finished first. On Friday, they are going to work together to clean the big horse stalls. If they clean for the same amount of time on Friday, who will likely clean more horse stalls?

HELPPPP

Answers

Answer:

its most likely to be manny

Step-by-step explanation:

since he finished the same amount as hunter faster

Answer:manny

Step-by-step explanation: I did it

Add the Fractions: Simplify if possible

10 1/3 + 1 2/3 =

Answers

Answer:

I believe the answer is 12

Answer:

the correct answer would be 12

Step-by-step explanation:

10 1/3 + 1 2/3

31/3 + 1 2/3

31/3 + 5/3

=12

Hope this helps, happy holidays!!

Mrs. Nelson deposits $2,500 in an account that earns 5% simple interest. How much is Mrs. Nelson's investment worth after 20 years ?
A:2500
B:5000
C:4500

Answers

The answer is B because 5% of 2500 is 125 so each year 125$ gets added to her account so you multiply 125 by 20 and you get 2500. Finally you add 2500 + 2500 which gives you 5000

Brent and Lance leave a park on bicycles traveling at constant rates in opposite directions. After 2.5 hours, they are 85 miles apart. If Lance bikes 2 mph faster then Brent, how fast is Lance biking?

Answers

Answer:

18 mph so B is correct 16+2= 18

Answer:

B

Step-by-step explanation:

A price of a toy usually costing £50 is increased to £65
work out the percentage increase

Answers

Answer:

15/50×100=30%

Step-by-step explanation:

A chess club with 25 members is electing a new president. Abdul received 23 votes. What percentage of the club members voted for Abdul?

Answers

Answer

92%

Explanation

23 out of 25 people voted Abdul.

So that means [tex]\frac{23}{25}[/tex] people voted Abdul.

When you divide 23 by 25 you get 0.92 which is 92% (multiply by 100).

You divide because a fraction means the numerator divided by the denominator.

y=1.9x+2.5 what does this equal

Answers

Answer:

x=y+4.4

Step-by-step explanation:

y=1.9x+2.5

y/x=4.4

x=y+4.4

x-intercept : -25/19
y-intercept : 2.5
derivative : 19/10

HELP! WILL MARK BRAINLIEST

Answers

Answer:

it is b

Step-by-step explanation:

A spinner can land on either red, blue, green, or yellow. You spin once.
Find the number of possible outcomes in the sample space.
Please show me how to solve this.

Answers

Answer:

You have a 25% chance on landing on any of the colors  

Step-by-step explanation:

You Look at all of the posible ways you can land on which is Red, Blue, Green, and Yellow there are four colors in the spinner if you divide the number of colors (4) and divide it by 100 you will get 25 and that is your answer

Considering it's concept, it is found that the number of outcomes in the sample space is of 25%. You have a 25% chance on landing on any of the colors  

What is the sample space of an experiment?

The sample space is the set that contains all possible outcomes for an experiment.

here, we have,

In this problem,

You Look at all of the possible ways you can land on which is Red, Blue, Green, and Yellow

there are four colors in the spinner

if you divide the number of colors (4) and divide it by 100

you will get 25 and that is your answer

Hence, Considering it's concept, it is found that the number of outcomes in the sample space is of 25%. You have a 25% chance on landing on any of the colors.

More can be learned about sample spaces at brainly.com/question/25861936

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plzz help me with this ​

Answers

Answer:

Lily is correct.

Step-by-step explanation:

Lily is correct.  There is no such thing as AAA congruence.  James has proved that the three angles are the same, but the triangles could still be of different sizes.

Hi! Can someone please answer this and show work, please? Thanks!
-4(3v-4)=52

Answers

The answer is V= -3
Isolate the variable by dividing each side factors that doesn’t contain the variable .

problem: – 12 = - Зу

Answers

Answer:

4y or 4 (divide)

Step-by-step explanation:

Answer:

y = 4

Step-by-step explanation:

Is this what you wanted?

Sheena made a scale drawing of her classroom using a scale of 1 inch = 10 feet. One wall of the classroom in the drawing is 4 inches long. Which proportion can be used to find x, the length of the actual wall, in feet?

Answers

Answer:

40 Feet

Step-by-step explanation:

1 inch = 10 feet

4 inch = 4 * (10 feet)

4 inch = 40 feet

If you buy every item in the song, The Twelve Days of Christmas, how many items will you buy?

Answers

Answer:

Total item = 364

Step-by-step explanation:

1 partridge for 12 days = 12 x 1 = 12

2 turtle doves for 11 days = 11 x 2 = 22

3 french hens for 10 days 10 x 3 = 30

4 calling birds for 9 days = 9 x 4 = 36

5 gold rings for 8 days = 8 x 5 = 40

6 geese a-laying for 7 days = 7 x 6 = 42

7 swans a-swimming for 6 days = 6 x 7 = 42

8 maids a-milking for 5 days = 5 x 8 = 40

9 ladies dancing for 4 days = 4 x 9 = 36

10 lords a-leaping for 3 days = 3 x 10 = 30

11 pipers piping for 2 days = 2 x 11 = 22

12 drummers drumming for 1 day = 1 x 12 = 12

Total item = 364

plz help its late !?!?

Answers

Answer:

A

Their slopes are negative reciprocals

What is the x intercept of the graph of 3x-y+6=0

Answers

Answer: It would be 2,0 :) Please tell me if I'm wrong

Step-by-step explanation:

What is the total including sales tax for an item that cost 75.25 at a tax rate of 8%

Answers

Answer:

$81.27

Step-by-step explanation:

75.25 X 8% = $6.02 + 75.25 = $81.27

ASAP someone please help me step by step so I can understand it better please

Answers

Answer:

Y=6

Step-by-step explanation:

i’m only commenting so you can mark that person brainlyest

2. Re-write the equation in slope-intercept form
y + 4 = -2(x + 3)

Answers

the correct answer:

y=-2x-10

explanation:

if I have 130 of something and I need 200 how many more do I need

Answers

Answer:

70

Step-by-step explanation:

200 - 130

) A gas station owner finds that for every penny increase in the price of gasoline, she sells 1516 fewer gallons of gas per week. How much more or less gas will she sell if she raises the price by 10 cents per gallon? If she decreases the price by 2 cents per gallon?

Answers

Answer:

a) 15160 gallons

b) 3032 gallons

Step-by-step explanation:

Given that for every penny increase in the price of gasoline there is a decrease of 1516 gallons sold per week

a) when she raises the price by 10 cents per gallon

There will be a decrease of ( 1516 * 10 ) gallons sold per week i.e. = 15160 gallons

b) when she decrease the price by 2 cents per gallon

There will be an increase ( 2 * 1516 ) gallons sold per week  i.e. = 3032 gallons

Evaluate the following using a nmber line:-4+-5+3​

Answers

Answer:

-6

Step-by-step explanation:

-4+-5=-9

-9+3=-6

if x+1/x = 5 find the value of x^3 +1/x^3. pls solve​

Answers

Answer:

1) solve x+1/x = 5

[tex] \frac{x + 1}{x} = 5[/tex]

[tex]x + 1 = 5x[/tex]

[tex]x - 5x = - 1[/tex]

[tex] - 4x = - 1[/tex]

[tex]x = \frac{ -1}{ - 4} [/tex]

[tex]x = \frac{1}{4} [/tex]

2) solve x³+1/x³

[tex]x {}^{3} + \frac{1}{x {}^{3} } [/tex]

substitute x = 1/4 into the expression

[tex]( \frac{1}{4} ) {}^{3} + \frac{1}{( \frac{1}{4}) {}^{3} } [/tex]

[tex] \frac{1}{64} + \frac{1}{ \frac{1}{64} } [/tex]

[tex] \frac{1}{64} + \frac{64 \times 1}{1} [/tex]

[tex] \frac{1}{64} + 64[/tex]

[tex] \frac{4097}{64} \: or \: 64.02[/tex]

cassandra has a loan of 35,720.This loan has a simple intrest rate of 4% per year.What is the amount of intrest will pay on this loan at the end of 2 year? PLEASE DONT JOKE AROUND THIS IS MY TEST.

A. 2,857.60

B. 38,577.60

C. 1,428.80

D. 5,715.20

Answers

Answer:

$2857.60 because when yu multiply the loan times the % yu get 1428.80 because it’s the end of 1 year and the question is asking for the end of 2 years so yu have to double it.

Step-by-step explanation:

What is the point-slope form equation of the graph?

Answers

Answer:

y-4= 1/2(x+2)

Step-by-step explanation:

PLEASE HELP ME OUT WITH THIS I NEED HELP BAD!!!!!!

Answers

Answer:

First box is the one all the way on the right

Second box Is the second one from the left

Third box Is the first one on the left

Last box is the 3rd one from the left

Step-by-step explanation:

be SPEEDY! Name two
perpendicular lines and two parallel lines.

Answers

Parallel lines are lines in a plane that are always the same distance apart. Parallel lines never intersect. Perpendicular lines are lines that intersect at a right (90 degrees) angle. Hope this helps :))

A person who weighs 160 pounds on Earth will weigh around 400 pounds on Jupiter. How much will a person weigh on Jupiter who weighs 120 pounds on Earth?​

Answers

Answer:

280

Step-by-step explanation:

subtract

Answer:300

Step-by-step explanation:

a worker produced 480 parts over an 8-hour shift. how many parts per hour did the worker produce.

Answers

Answer:

60

Step-by-step explanation:

Help will give crown

Answers

Answer:

8

Step-by-step explanation:

from A to B it's 8 units long

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