Mathematics College

In , the Pew Internet & American Life Project asked teens aged to several questions about their attitudes toward social media. The results showed that say social media makes them feel more connected to what is going on in their friends' lives; say social media helps them interact with a more diverse group of people; and feel pressure to post content that will get a lot of likes and comments.
Round your answers to four decimal places.
a. Develop a point estimate of the proportion of teens aged to who say social media makes them feel more connected to what is going on in their friends' lives.
b. Develop a point estimate of the proportion of teens aged to who say social media helps them interact with a more diverse group of people.
c. Develop a point estimate of the proportion of teens aged to who feel pressure to post content that will get a lot of likes and comments.

Answers

Answer 1

Complete Question

The  complete question is shown on the first uploaded image

Answer:

a

[tex]\^ p_1 =  0.8102 [/tex]

b

[tex]\^ p_2 =  0.6904 [/tex]

c

[tex]\^ p_3 =  0.3701 [/tex]

Step-by-step explanation:

From the question we are told that

   The sample size is  n  =  743

    The number that said social media makes them feel more connected  to what is going on in their friends' lives is  k =  602

   The number that said social  media helps them interact with a more diverse group of people is  y =  513

   The  number that said feel pressure to post content that will get a lot of likes and comments is  c  =  275

Generally a point estimate of the proportion of teens aged 13 to 17  who say social media makes them feel more connected to what is going on in their friends' lives is mathematically represented as

        [tex]\^ p_1 =  \frac{k}{n}[/tex]

=>      [tex]\^ p_1 =  \frac{602}{743 }[/tex]\

=>      [tex]\^ p_1 =  0.8102 [/tex]

Generally a point estimate of the proportion of teens aged 13 to 17  who say social media helps them interact with a more diverse group of people is mathematically represented as

        [tex]\^ p_2 =  \frac{k}{n}[/tex]

=>      [tex]\^ p_2 =  \frac{513}{743 }[/tex]\

=>      [tex]\^ p_2 =  0.6904 [/tex]

Generally a point estimate of the proportion of teens aged 13 to 17   who feel pressure to post content that will get a lot of likes and comments is mathematically represented as

        [tex]\^ p_3 =  \frac{k}{n}[/tex]

=>      [tex]\^ p_3 =  \frac{275}{743 }[/tex]

=>      [tex]\^ p_3 =  0.3701 [/tex]

In , The Pew Internet & American Life Project Asked Teens Aged To Several Questions About Their Attitudes
Answer 2

The point estimate of the teens aged to who say social media makes them feel more connected is 0.8102.

How to calculate the point estimate

The point estimate of the proportion of teens aged to who say social media makes them feel more connected to what is going on in their friends' lives will be:

= Number of teens / Sample size

= 602/743

=™0.8102

The point estimate of the proportion of teens aged to who say social media helps them interact with a more diverse group of people will be:

= 513/743

= 0.6904

The point estimate of the proportion of teens aged to who feel pressure to post content that will get a lot of likes and comments will be:

= 275/743

= 0.3701

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Related Questions

need help really please​

Answers

Answer:

the answer is b. I need more words to submit this

Answer is 9, 18, and 27

triangle DEF is a right triangle and the of angle D is 28° what are the measures of the other two angles if the measures of angle E is greater than the measure of angle F

Answers

Answer:

A possiable answer to solve this could be E is 86 and F is 66

Step-by-step explanation:

All triangles have a 180 degree to them. I just subtracted 28 from 180. Diveded that by 2 then gave one ten degrees more and the other has ten degrees less

The measure of the angle E will be 90° and the measure of the angle F will be 62°.

What is the triangle?

A triangle is a three-sided polygon with three angles. The angles of the triangle add up to 180 degrees.

The triangle DEF is a right triangle and the of angle D is 28°.

In a right-angle triangle, one angle will be 90°.

If the measure of angle E is greater than the measure of angle F. Then the angle E will be 90°. Then the measure of the angle F will be given as,

We know that angle D and angle F are complementary. Then the equation is given as,

∠F + ∠D = 90°

∠F + 28° = 90°

∠F = 62°

The measure of the angle E will be 90° and the measure of the angle F will be 62°.

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8/9 - 1/3 equals what​

Answers

Answer:

5/9

Step-by-step explanation:

Answer:

5/9

Step-by-step explanation:

use a calculator it really helps:))

Find the surface area of a rectangular solid with the given dimensions: length 25 feet, width 7 feet, height 10 feet. Give your answer without units.

Answers

Answer: 990

Step-by-step explanation:

SA = 2LH + 2LW + 2WH

SA= 2(25•10) + 2(25•7) + 2(7•10)

SA= 990

The surface area of a rectangular solid will be 990 square feet.

What is the surface area of the rectangular prism?

Let the prism with a length of L, a width of W, and a height of H. Then the surface area of the prism is given as

SA = 2(LW + WH + HL)

We have length 25 feet, width 7 feet, and height 10 feet.

SA = 2(25 x 7 + 7 x 10 + 10 x 25)

SA = 2(175 + 70 + 250)

SA = 2(495)

SA = 990 square feet

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To find the quotient of 8 divided by one-third, multiply 8 by
One-eighth.
One-third.
3.
8.

Answers

Answer:

The answer is 3

Step-by-step explanation:

To find the quotient of 8 divided by 1/3 multiply 8 by

8/1 divided by 1/3

8 x 3

-------

1 x 1

=

24/1

=

24

The quotient of 8 divided by one-third is same as multiply 8 by 3.

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications.

For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

We have to given that;

The quotient of 8 divided by one-third.

Now, We get;

The quotient of 8 divided by one-third.

⇒ 8 ÷ 1/3

⇒ 8 × 3

Thus, It is clear from the above steps that dividing 8 by 1/3 is equivalent to multiplying 8 by 3.

Therefore, Multiplying 8 by 3 will give the same quotient.

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Help me out fast on this question.

Answers

The third one 15.5x2.3

I need help plssssssss

Answers

Answer:

Choices Please?

Step-by-step explanation:

Comment on this

Answer:

.

Step-by-step explanation:

There were 32 adults and 4 children in line at the movie theater. How many times more adults were in the line than children?

Answers

Answer:

8 times more adults than kids

Step-by-step explanation:

What is the slope of the line that passes through the points (-3, -3)(−3,−3) and (-9, 5) ?(−9,5)? Write your answer in simplest form.

Answers

Answer

-4/3

Step-by-step explanation:

Kara and Nathan participated in a 60-minute maze race.


Kara:


32 minutes


Nathan:


40 minutes


Part B


Is the relationship in Part A rational or irrational? Justify your answer.


Select the answers that complete the sentences.


Hint(s): A rational number can be written as a ratio of two integers.


Can the times for each be written as integers?


The relationship is


The number


be expressed as a ratio of two integers.


1 rational


11 irrational


can


I cannot

Answers

Answer:

A) There is a rational relationship, B) Given ratio is not an integer.

Step-by-step explanation:

A) Is the relationship in Part A rational or irrational? Justifty your answer.

From Mathematics we remember that a rational number can formed by dividing a natural number by another natural number. Since Kara and Nathan had two natural numbers {32, 40} as their times of participation in the maze race, ratio between those times can be considered a rational number.

Hence, there is a rational relationship.

B) Can the times for each be written as integers?

The times represents the ratio of the upper number (40) to the lower number (32), the "times" can be written as integer if and only if denominator is equal to 1 after simplifying the ratio. That is:

[tex]x = \frac{40}{32}[/tex]

[tex]x = \frac{20}{16}[/tex]

[tex]x = \frac{10}{8}[/tex]

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

In consequence, this ratio does not represent an integer. ([tex]1.25=\frac{5}{4}[/tex])

Canoe rentals cost $10 plus $4 per hour. A group of friends rent 3 canoes for 3 hours. what is their total cost.

Answers

Answer:

42

Step-by-step explanation:

Answer:

$42

Step-by-step explanation:

$10 * 3 canoes = $30

$4 * 3 hours = $12

30 + 12 = $42

pls help this is due today and need help please. ​

Answers

Answer:

The answer is 45.9 L

Step-by-step explanation:

1. Multiply

25.5L x 1.8L

2. Solve

25.5 x 1.8= 45.9L

the scale on the map is 5cm : 1 km.

Answers

Answer:

lol do you need help with anything

Step-by-step explanation:

So do you need help or ..

Michael says that the difference between dani’s and raj’s age is proportional to dani’s age. Is Michael correct ?

Answers

Answer:

No Michael is not correct.

Step-by-step explanation:

You want the difference between the ages.

Hope I helped.

Answer:

What is their ages?

Step-by-step explanation:

say if Dani is 20 and Raj is 5 then yes, they are proportional

What are the total expenses for a month if someone spends $900 on rent,
$290 on groceries, $55 for electric, $30 for water, $70 for car insurance,
$145 on entertainment, $87 on gas, $40 on clothes, and $56 on sports.

Answers

Answer:

$1673

Step-by-step explanation:

$900+$290+$55+$30+$70+$145+$87+$40+$56=$1673

Martha has some nickels and dimes worth $6.25. She has three times as many nickels as dimes. How many nickels does she have?

Answers

Answer:

75 nickels.

Step-by-step explanation:

Here is the system of equations you can use:

0.05n+0.1d=6.25 (which can be converted to 5n+10d=625)

3d=n

5(3d)+10d=625

15d+10d=625

25d=625

d=25

3(25)=n

n=75

A worker at one farm is paid $486 for the week, plus $0.03 for every pound
of apples she picks. At another farm, a worker is paid $490 for the week, plus
$0.02 for every pound of apples. For how many pounds of apples are the workers
paid the same amount?

Answers

Answer:sorry this probably is t the most helpful but the closest i could get was 399 lbs. it’s is st$497.7 for one and $$497.8.

Step-by-step explanation:

Big ideas math segments lesson 1.2
12, 14,16,18

Answers

We do not know your Mathbook, please give us the questions.

The provided arithmetic sequence adds up to 60.

What is an arithmetic sequence?

The difference between every two successive terms in an arithmetic series is always the same. The number "a" is the first term, and "d" is the common difference between the sequence. The nth term of an arithmetic sequence is given by. aₙ = a + (n – 1)d

Given an arithmetic sequence 12, 14,16,18

The general formula for the Sum of arithmetic sequence:

Sn = n/2 [2a+(n−1)d]

where: n = the number of terms to be added.

a = the first term in the sequence.

d = the constant value between terms.

In our case,

a = 12

n = 4

and d = 14 - 12 = 2

thus

Sum = 4/2(2*12 + (4- 1 )2)

Sum = 2( 24 + 6)

Sum = 60

therefore, the Sum of the given Arithmetic sequence is 60.

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A line passes through (2, 7) and has a slope of -4. What is its equation in point-slope form?


Sorry I'm bad

Answers

Answer:

y= (-4/1)x -1

Step-by-step explanation:

ples help!!! andrew can frame 9 pictures each day. he has an order for 108 pictures. how many days will it take him to complete the order

Answers

Answer:

23

Step-by-step explanation:

Answer:

12 days.

Step-by-step explanation:

108 divided by 9!


2x + 3y- z = 13
3x - 4y+z = -2
x + 2y + 2z= 21

Answers

What’s the question ?

A catering company loses $110 as a result of a delay.
The 5 owners of the company must share the loss equally.
Which integer represents the change in profit for each owner?

Answers

Answer:

-$22.00

Step-by-step explanation:

How much smaller is x−3 than x+4?

Answers

Answer: bsf google

Step-by-step explanation: go to google look it up and find the answer

Answer:

x-3

Step-by-step explanation:

It's x-3 because if you put 12-3 it will be 9 but if you add x+4 it will be 16

Given a normal distribution with a mean of 125 and a standard deviation of 14, what percentage of values is within the interval 111 to 139?
A. 32%
B. 50%
C. 68%
D. 95%
E. 99.7%

Answers

Answer:68%

Step-by-step explanation:

just took this test

The percentage of values is within the interval 111 to 139 will be "68%".

Probability

According to the question,

Mean = 125

Standard deviation = 14

Let,

The random variable be "X".

Now, the probability:

→ P(111 < X < 139) = P (111 - 125 < X - 125 < 139 - 125)

                           = P(-14 < X - 125 < 14)

                           = P(-[tex]\frac{14}{14}[/tex] < [tex]\frac{(X-125)}{14}[/tex] < [tex]\frac{14}{14}[/tex])

                           = P(-1 < Z < 1)

When, Distribution function "[tex]\phi[/tex]" now,

= [tex]\phi[/tex](1) - [tex]\phi[/tex](-1)

= [tex]\phi[/tex](1) - 1 + [tex]\phi[/tex](1)

= 2 × [tex]\phi[/tex](1) - 1

= 2 × 0.8413 -1

= 1.6826 - 1

= 0.6826 or,

= 68%

Thus the above answer i.e., "option C" is correct.

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Translate the sentence into an equation.
Twice the difference of a number and 8 is 2.
Use the variable c for the unknown number.

Answers

2(c-8)=2
jakajsnskshsmsjsbsb

Answer:

2×c=8         c=4

Step-by-step explanation:

P.9.115

A local bank charges $9 per month plus 24 per check. The credit union charges $7 per month plus 4e per chock. How many checks should be written each month to make the credit union a bottor deal?

The credit union is a better deal when writing or fower checks per month

Answers

This question was not properly written

Correct Question

A local bank charges $9 per month plus 2c per check. The credit union charges $7 per month plus 4cper check. How many checks should be written each month to make the credit union a better deal?

The credit union is a better deal when writing fewer checks per month

Answer:

Writing between 0 to 99 checks makes the credit union a better deal.

Step-by-step explanation:

Let the number of checks be represented by x

Note, 1 cent = $0.01

A local bank charges $9 per month plus 2c per check.

2c = $0.02

$9 + 0.02× x

= 9 + 0.02x

The credit union charges $7 per month plus 4c per check.

4c = $0.04

= $7 + 0.04 × x

= 7 + 0.04x

The credit union is a better deal when writing fewer checks per month

Hence:

Credit union < Local bank

7 + 0.04x < 9 + 0.02x

Collect like terms

0.04x - 0.02x < 9 - 7

0.02x < 2

x < 2/0.02

x < 100 checks

Hence, writing less than 100 checks (i.e writing between 0 to 99 checks) makes the credit union a better deal.

I need to know how to write a equation number sentence for my time traveled from 2020 to 2000

Answers

Answer:

explain further or send a picture of what you mean and then I can help you

Anna can walk 10 miles in 4 hours. At this rate, how many minutes does it take her to walk one mile?

Answers

Answer:

0.066666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666

Step-by-step explanation:

4 divided by 60=that

What are the two decisions that you can make from performing a hypothesis​ test? Select all that apply.
A.
accept the alternative hypothesis
B.
fail to reject the alternative hypothesis
C.
accept the null hypothesis
D.
fail to reject the null hypothesis
E.
reject the null hypothesis
F.
reject the alternative hypothesis
G.
make a type II error
H.
make a type I error

Answers

Answer:

reject the null hypothesis or fail to reject the null hypothesis.

The two decisions that perform the hypothesis test includes fail to deny the null hypothesis, and deny the null hypothesis.

Hypothesis testing refers to the testing that can give access to the reliability of the hypothesis via sample data.

There are two types of decisions that are considered to be wrong while performing the hypothesis test is:

In the case when the hypothesis is true but i.e. rejected. This is known as a type I error.In the case when the hypothesis is false, but it is failed to reject it. This is known as a type II error.

So, the decisions that should not be considered while performing the hypothesis test is:

Acceptance of the alternative hypothesis.Acceptance of the null hypothesis.Fail to deny the alternative hypothesis.Deny the alternative hypothesis.Making of type I error.Making of type II error.

Therefore we can conclude that options D and option E are considered from performing a hypothesis​ test.

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Garrison deposited $500 in an account that earns 5%
annual interest compounded annually. If he makes no
withdrawals or deposits, how much interest will the
account earn after 4 years?

Answers

Answer:

$107.75

Step-by-step explanation:

mark me brainliestt please

The Amount will be $607.75 and Interest is $ 107.75 after 4 years.

What is Compound Interest?

In order to compute compound interest, multiply the principle of the original loan by the annual interest rate multiplied by the number of compound periods minus one.

The interest you earn on interest is known as compound interest.

Given:

Garrison deposited $500.

Interest = 5%

Time= 4 years.

First, convert R as a percent to r as a decimal

r = R/100

r = 5/100

r = 0.05 rate per year,

Then solve the equation for A

A = P[tex](1 + r/n)^{nt[/tex]

A = 500.00[tex](1 + 0.05/1)^{(1)(4)[/tex]

A = 500.00[tex](1 + 0.05)^{(4)[/tex]

A = $607.75

and, I = A- P

I = 607. 75 - 500

I= $107.5

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