The use of the internet is constantly growing. How many randomly selected adults must be surveyed to estimate the percentage of adults in the United States who now use the internet? Assume we want to be 99% confident that the sample percentage is within 2 percentage points of the true population percentage.
a) Assume that nothing is known about the percentage of adults using the internet.






b) Assume it was estimated that 72% of adults in the United States use the internet.

Answers

Answer 1
Out of those 2 answers I believe your answer would be B only because 81% of Americans in the us have a phone and 35% of people in the us check there phone more than 50 times per day

Related Questions

Define probability. Each number from 1 to 20 is written on a slip of paper and placed in a hat. If a slip of paper is randomly-chosen from the hat, determine the probability that a prime number will be selected.

Answers

I believe that the answer is the addition of all the prime numbers as numbers themselves
Like 1 3 5 7 11 13 17 19 would be 9 numbers so 9/20
What the person above me said i believe is factually correct?

If y = 5x, then y is directly proportional to ______
Help me please my teacher rlly annoying

Answers

y = 5x, so 5 is the constant of proportionality

In the given linear equation, y is directly proportional to x.

What is a linear equation?

A linear equation is an equation that has the highest power of the variable of 1.

Given linear equation is:

y = 5x

Here, '5' is a constant term.

Therefore, y is directly proportional to x.

Learn more about linear equation here: https://brainly.com/question/27726739

#SPJ3

Write an equation of the line that passes through (18, 2) and is parallel to the line 3y - x = -12.

Answers

Answer:

3y=x-12

y=x/3-4

m=1/3

At (18,2)

y-2=1/3(x-18)

y-2=x/3 - 6

y=x/3 - 4

smeone invests £800 at a rate of 2% simple interest per year. Work out the amount of interest she receives after three years.

Answers

Answer:

£48

Step-by-step explanation:

I=Prt

I=(800)(0.02)(3)

I = 48

Answer:

the simple interest earned was £48.

Step-by-step explanation:

the appropriate simple interest formula is i = prt, where r is the annual interest rate as a decimal fraction.  Here, with prt = (£800)(0.02)(3 yr), we find that the simple interest earned was £48.

Joey went to a toy show at the local community center. He bought action figures and trading cards. He spent a total amount of $34.04. He spent $4.22 on the trading cards. He bought 6 action figures that cost the same amount. What equation can be used to determine the cost,a,of each action figure?

Answers

$34.04 - $4.22 = $29.82
$29.82 ÷ 6 = A

What are the slope and the y-intercept of the linear function that is represented by the graph?

On a coordinate plane, a line goes through points (0, 3) and (4, 0).

Answers

The slope is the change in y over the change in x.

The first number in the parentheses is the x value, the second number is the y value.

Slope = (0-3) / (4-0)

Slope = -3/4

The y intercept is the y value when x is 0.

The given point (0,3) has x as 0, so the y intercept would be 3

Answers: slope = -3/4, y intercept = 3

Answer:

y intercept = 3 slope = -3/4

Step-by-step explanation:

I did this on edganuity :)

Describe and correct the error ​

Answers

Answer:

ok

Step-by-step explanation:

Diane made $272 for 17 hours of work.
At the same rate, how much would she make for 9 hours of work?

Answers

272/17 = $16
$16 per hour
16 x 9 = $144 for 9 hours

I’m stuck on this one- sorry if I’m annoying lol

Answers

Answer:

The first statement: "Her first mistake was in Step 2. She added 0.2 to each term instead of multiplying by 0.2."

helppppppppppppppppppppp make it correct

Answers

Answer:

11

Step-by-step explanation:

x= -b/2a

x= -8/2(-2)

x=-4/-2

x=2

f(2) = -2(2) +8(2)+ 3

f(2) = -8 +16 + 3

f(2) = 11

Maximum value is 11

Answer:

11

Step-by-step explanation:

it has a vertex at (2,11)

.

f(2) = 11

how to find the vertex;

function equation is f(x) = ax^2 + bx + c

we can find x by :-b/2a, -8/-4 = 2

and by putting the x value we get the y

f(2) = 11

Please help I will give brainliest

Answers

Answer:

Step-by-step explanation:

What is the rate of change of the function?
-2
-1/2
1/2
2

Answers

Answer:

-2/1

Step-by-step explanation:

Answer:

-2/1

Step-by-step explanation:

Help me please??????

Answers

Answer:

according to writer it answer is 2 minute

x+62=19 what is it help me now

Answers

Answer:

= − 4 3

Step-by-step explanation:

Answer:

x+62=19

x=19-62

x=-43

I hope this help

In the evening, the temperature is 28 degrees. By midnight it has dropped 31 degrees lower. Between midnight and 4 am it goes down 6 more degrees. Then, by 9 am, the temperature goes up 30 degrees. What is the temperature at 9 am?

Answers

Answer: 21 degrees

Step-by-step explanation:

In the evening, the temperature is 28 degrees and by midnight it has dropped 31 degrees lower, the temperature by midnight will be:

= 28° - 31°

= -3°

Between midnight and 4 am it goes down 6 more degrees. The temperature by 4am will be:

= -3° - 6°

= -9°

Then, by 9 am, the temperature goes up 30 degrees, the temperature at 9 am will then be:

= -9° + 30°

= 21°

Graph y > x^2 - 3.

Click on the graph until the correct graph appears.

Answers

Answer: The first one

Answer:

The first one

Due: Today Raven told Micah the perimeter of the swimming pool was 35 feet, the dimension of the pool were 5 ft by 7 ft. Micah said the perimeter was 24 feet. Who is correct? Justify your answer.

Answers

Answer: Micah

Step-by-step explanation:

Given

Raven told Perimeter of the swimming pool is [tex]35\ ft[/tex]

Micah said Perimeter is [tex]24\ ft[/tex]

The actual dimension of the swimming pool is [tex]5\ ft\times 7\ ft[/tex]

Perimeter is given by  [tex]2(l+w)[/tex]

Using this, the perimeter is

[tex]\Rightarrow P=2(5+7)\\\Rightarrow P=2\times 12=24\ ft[/tex]

[tex]\therefore[/tex] Micah statement is correct.

103+1793=????????
what is the answer??​

Answers

Answer:

1896

Step-by-step explanation:

= 1896 use a Calculator

PLEASE HELP WILL MARK BRAINLIEST THIS IS DUE IN AN HOUR

Answers

total surface area = 336 m2
lateral surface area = 288 m2

the answer is B,

How many sides does a regular polygon have if one exterior angle has a measure of 10°?

Answers

Answer:

36

Step-by-step explanation:

Answer:

36 sides

Step-by-step explanation:

what is the mode of 0.3 0.9 0.2 0 0.7 0.9 0.4

Answers

the mode would be 0.9 !

please mark brainliest :3 ♡

Answer:

0.9

Step-by-step explanation:

Mode is the number that occurs most often.

So, the easiest way to do this would be to list out all of your values and count 'em up.

0:one

0.2:one

0.3:one

0.4:one

0.7:one

0.9:two :)

Help me please is this right

Answers

The answer is 7.5 eeeee

Energy that moves from a warmer object to a cooler object is called ________.
a insulation
b temperature
c thermal energy
d heat

Answers

Answer:

Tempature and this not mathematics

solve (x-3)^2=5
A. x=5+√3
B. x=-3+√5
C. x=3+√5
D. x=8 and x=-2

Answers

Answer:

A

Step-by-step explanation:

we should first find the value of x.

Answer:

C

Step-by-step explanation:

(x-a)^2=5

x-3=root of 5

x= root of 5 +3

Which equation represents the relationship between m and d on the chart below?
Plssss Hurry!!

Answers

Answer:

I guess the answer is 6.the last choice

50 points!

-]Kala’s fish tank has 16 liters of water in it. She plans to add 4 liters per minute until the tank has more than 36 liters. What are the possible numbers of minutes Kala could add water?
-]Use t for the number of minutes.
-]Write your answer as an inequality solved for t.

Answers

Answer:

I will ask a freind if they know

Step-by-step explanation:

Answer:

t > 5

Step-by-step explanation:

Time : liters

[tex]\left[\begin{array}{ccc}0&16\\1&20\\2&24\\3&28\\4&32\\5&36\\6&40\end{array}\right][/tex]

We can see using the table that at 5 minutes, there would be 36 liters of water in the tank. Since Kala is going to keep filling the tank until there is more than 36 liters, the inequality would be t > 5.

HELP PLEASE, I will mark brainless

Answers

to find the slope take two ordered pairs and put them in form of x2-x1/y2-y1 and then you can find the slope.

(-2,17) (-3,20)

(-2)-(-3) = 1
(17)-(20)=-3

slope is 1/-3

Elyssa bought a rectangular aquarium . The measurements , in feet (ft) , are shown below. How much water will it take to fill the aquarium?

Answers

Answer: The answer is 34 13/20.

Step-by-step explanation:

I did it and was correct for me! Hope it helps ❤️

Answer:

34 13/20

Step-by-step explanation:

ahah can someone help like fr- I hate school ☝

Answers

Answer:

Reflection

Step-by-step explanation:

Reflection since they are congruent, and just flipping it would bring one triangle perfectly on to the other.

I sympathize with you on the school issue. :P Hope that helps!

Answer:

Translation

Step-by-step explanation:

I can't seem to get this one can someone please help me

Answers

Answer:

The answer should be C

Step-by-step explanation:

Answer

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