Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 99 people in the 18-21 age bracket and finds that 84 of them respond and 15 refuse to respond. When 276 people in the 22-29 age bracket are contacted, 257 respond and 19 refuse to respond. Assume that 1 of the 375 people is randomly selected. Find the probability of getting someone in the 18-21 age bracket or someone who agreed to respond.

Answers

Answer 1

Answer:

The probability of getting someone in the 18-21 age bracket or someone who agreed to respond [tex]= 0.365[/tex]

Step-by-step explanation:

The counts are as follows  

Age Group  No of people contacted No of refusals      Total  

18-21               88                                  8                       96

22-29              240                                  42                       282

Total              328                                  50                       378

 

The probability of getting some one in the age bracket of 18-21 or some one who refused to respond is

[tex]= \frac{96}{378} + \frac{50}{378} - \frac{8}{378} \\= \frac{96+50-8}{378} \\= \frac{138}{378} \\= 0.365[/tex]


Related Questions

greg wants to buy a video game.the game is 50% off and the original price is $40.00how much will greg have to pay for this video game

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Answer:

its 4.00%

Step-by-step explanation:

Solve 25=q+14.

Q=?

Can someone help please?

Answers

Answer:

11

Step-by-step explanation:

just flip the problem around 14+q=25

then do 25-14

Thats your Q

Theo is baking a
recipe that makes 36
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sugar. At this rate, how
many cups of sugar
are needed to bake 18
cookies?

Answers

Answer:

26 bc it is equall

Step-by-step explanation:

Answer:

1  cup

Step-by-step explanation:

You divide 36 by 2 to see how many cookies can be made with 1 cup which is 18 so in this question its 1

what is 0.48 times 0.4

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Answer:

0.193

Step-by-step explanation:

Heyy plsss helppp it’s important!!!

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Answer:

x is less than or equal to 3

Step-by-step explanation:

The dot is a closed dot, which means that it is something or equal to, and the arrow is pointing down, which means less than. So the sign would be less than or equal to (sorry I don't have that sign on my computer). The dot is on three, so the inequality is x is less than or equal to 3.

jack maclean has entered into real estate

Answers

Answer:

im sorry but id ont know

Step-by-step explanation:

In order of operation plsss help 10/5 + 3 x 5 - 5

Answers

The answer is 12
Step one- 10 divide by 5 is 2
Step two- 3 times 5 is 15
Step three- add them together is 17
Step four- then subtract 17 from 5
Final step- then your answer will be 12

Which shows the mixed number for 13/3?
4 1/3 or
1 3/3 or
4 2/3

Answers

Answer:

Answer vary :

4 1/3

Step-by-step explanation:

Which of the following is an advantage to refinancing?
A. It is a time-consuming process.
O B. There are prepayment penalties.
C. It offers lower interest rates.
D. There are additional closing costs.

Answers

Answer:

c.it offer lower interest rates

Explain your answer !

( WILL GIVE BRAINLST)

Answers

last one bc it jus is the last one so put in the last one bc the last one is the right one

Answer:

C

Step-by-step explanation:

I think it would be easiest to see these numbers in decimal form to determine which number is the greatest and which is the smallest.

2 as a decimal=2.0

Square root of 7 as a decimal= 2.64575131106

1/3 as a decimal= 0.3333333333333333333333333333333333333333333...

So, 0.3333333...<2.0<2.64575131106

or 1/3, 2, square root of 7

Answer is C

PLEASE HELP ME WITH THE FIRST QUESTION ASAP!!

Answers

Answer:

11

Step-by-step explanation:

1.8 lbs

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Choose >, <, or = to compare each pair of numbers

5.31 ______ 5.13

Answers

Answer:

>

Step-by-step explanation:

Answer:

5.31 > 5.13

Step-by-step explanation:

5.31 is greater than 5.13 as it is farther than 5.13 on the number line.


I need help guys ASAP

Answers

I believe it’s 3 3/4 or H :)

30÷11
[tex]30 + 1[/tex]

Answers

30/11= 2.72....(repeating)

30+1= 31

if that’s what you’re asking?

A rental car company charges a fee of $150.00 for renting a car for a week plus $0.25 per mile driven.

Answers

Answer:

y = 150z + .25x

y = $ amount of rental

z = weeks rented

x = miles driven

i hope this helps :)

Put these fractions in order of size

Answers

1/6 = 4/24
3/8 = 9/24
11/24
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Find the 80th derivative of f(c)
ET
sin(2).
f(80)
Submit Question

Answers

Compute the first few derivatives to reveal a pattern:

f(x) = x sin(x)

f '(x) = x cos(x) + sin(x)

f ''(x) = (-x sin(x) + cos(x)) + cos(x) = -x sin(x) + 2 cos(x)

f '''(x) = (-x cos(x) - sin(x)) - 2 sin(x) = -x cos(x) - 3 sin(x)

f ''''(x) = (x sin(x) - cos(x)) - 3 cos(x)) = x sin(x) - 4 cos(x)

f ⁽⁵⁾(x) = (x cos(x) + sin(x)) + 4 sin(x) = x cos(x) + 5 sin(x)

f ⁽⁶⁾(x) = (-x sin(x) + cos(x)) + 5 cos(x) = -x sin(x) + 6 cos(x)

f ⁽⁷⁾(x) = (-x cos(x) - sin(x)) - 6 sin(x) = -x cos(x) - 7 sin(x)

f ⁽⁸⁾(x) = (x sin(x) - cos(x)) - 7 cos(x) = x sin(x) - 8 cos(x)

and so on.

The pattern should be clear: for some integer k,

• if n = 4k, then f(x) = x sin(x) - n cos(x)

• if n = 4k + 1, then f(x) = x cos(x) + n sin(x)

• if n = 4k + 2, then f(x) = -x sin(x) + n cos(x)

• if n = 4k + 3, then f(x) = -x cos(x) - n cos(x)

80 is a multiple of 4, so the 80th derivative falls in the first category. Then

f ⁽⁸⁰⁾(x) = x sin(x) - 80 cos(x)

Find the slope of the line that passes through the given point (-2, -4) and (-11, -7)

Answers

Answer:

Step-by-step explanation:

[tex]Slope= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\frac{-7-[-4]}{-11-[-2]}\\\\=\frac{-7+4}{-11+2}\\\\=\frac{-3}{-9}\\\\=\frac{1}{3}[/tex]

Compare the numbers using >,<, or =
874,023______874,233

5,493,820______5,492,483​

Answers

Answer:

<

>

Step-by-step explanation:

We have two sets of numbers and are asked to compare using the <, >, = symbols.

Remember :

< means less than

> means greater than

= means equal to

One thing I was told in 2nd grade when this subject came over for the first time, was to think of the symbol as a crocodile and that it wants to eat the bigger number, with the opening of it being the mouth of the crocodile. Therefore, out of 874,023 and 874,233. Which is the bigger number?

874,223.

<

Now for the second set,

>

2. Write the matching multiplication fact. 7 + 7 + 7​

Answers

Answer:

3x7

Step-by-step explanation:

7 + 7 + 7 is 3 x 7 because 7x3=21 and 7+7+7=21

5) Solve the equation for x.
log(x + 1) = 3

Answers

x=2

y=6  

x and yt are different variables

Answer:

999

Step-by-step explanation:

[tex]log(x)=y\\x=10^y\\log(x+1)=3\\x+1=10^3\\x=999[/tex]

Convert the expression (√5)(∛5) to exponential form. Show your work.

Answers

Answer:

[tex] {5}^{ \frac{5}{6}}[/tex]

Step-by-step explanation:

[tex]( \sqrt{5} )( \sqrt[3]{5}) \\ \\ = ({5}^{ \frac{1}{2} } ).({5}^{ \frac{1}{3} } ) \\ \\ = {5}^{ \frac{1}{2} + \frac{1}{3} } \\ \\ = {5}^{ \frac{3 + 2}{2 \times 3}} \\ \\ \huge \red{ \boxed{ = {5}^{ \frac{5}{6}} }}[/tex]

how do you complete this task?

Answers

Answer:

-3/2

Step-by-step explanation:

y=mx +b

where m is the slope and b is the y intercept

we just need to rewrite 3x+2y+18=0 to look like that

We need to get y by itself

3x+18= -2y

we need y to be positive and to have no number in front of it (no coeficcent)

y= -3/2x-9

the slope is therefore -3/2

Answer:

[tex]-\frac{3}{2} [/tex]

Step-by-step explanation:

3x + 2y + 18 = 0

Equating it with.

ax + by + c = 0, we find:

a = 3, b = 2, c = 18

Slope of the line [tex] =- \frac{a}{b} =-\frac{3}{2} [/tex]

A store sells paint sets. Each paint set costs the same amount. During a sale, the store reduces the price of each paint set by $1.55. Emily spends
$16.02 on 3 paint sets at the sale price.
What was the price of I paint set before the sale? Enter the answer in the box.

Answers

Answer:

$6.89

Step-by-step explanation:

Answer:

6.89

Step-by-step explanation:

when Emily bought 3 paint sets on sale each was worth 5.34. at original price it was 6.89

boole summation formula used in real life

Answers

Elbert frank cox? I think

Pls help!! i beg you

Answers

Answer:

fiesta size which is 5 times bigger than the normal size, and the fiesta size price is a little less than 3 times the normal price basicly if you bought 5 of those, you would get the same amount which. is a waist of money, therefore the fiesta size bag is a better deal to purchase

   

   

Hope It Helps!

What is 1/3 as a decimal? Give your answer rounded to 2 decimal places.

Answers

Answer:

Answer vary:

1/3 into a decimal = 0.3

Step-by-step explanation:

honestly in my opinion that my answer.

all you do to find it out is divide 1 to 3, so it’s pretty simple. and the dash between 1 and 3 in fractions means divide so yea that’s all you need to do.

If the radius of the circle is 3 cm, what is the measure of the longest chord?
A. 3 B. 6 C. 9 D. 12

Answers

9514 1404 393

Answer:

  B.  6

Step-by-step explanation:

The longest chord of a circle is the diameter, twice the length of the radius.

  2(3 cm) = 6 cm

Answer:

B. 6

Step-by-step explanation:

A chord of a circle is a line segment where both endpoints land on the circumfrence of the circle. The longest chord would be at the diameter, which is 2r (2 x 3).

Hope this helps :)

Help plsss I’m stressing out

Answers

7/8 is the correct answer
they together are 7/8 of the pizza

this is because when you put 1/4 into eights it turns into 2/8

5/8 +2/8 =7/8

what is the area of a circular swimming pool with the radius of 3 feet

Answers

Answer:

9[tex]\pi[/tex]

Step-by-step explanation:

r=3

Area of circle: [tex]\pi[/tex][tex]r^{2}[/tex]

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