1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
LenKa [72]
11 months ago
14

Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 81 people

in the 18-21 age bracket and finds that 69 of them respond and 12 refuse to respond. When 301 people in the 22-29 age bracket are contacted, 282 respond and 19 refuse to respond. Assume that 1 of the 382 people is randomly selected. Find the probability of getting someone in the 18-21 age bracket or someone who agreed to respond.
Mathematics
1 answer:
ipn [44]11 months ago
7 0

Answer:

Prob = 95.0%

Explanation:

There are 382 people in total

69 respond and are in the 18-21 age bracket

12 refuse to respond and are in the 18-21 age bracket

282 respond and are in the 22-29 age bracket

19 refuse to respond and are in the 22-29 age bracket

Then, the number of people that are in the 18-21 age bracket or agreed to respond is

69 + 12 + 282 = 363

Therefore, the probability of getting someone in the 18-21 age bracket or someone who agreed to respond is

P = 363/382

P = 0.9502

P = 95.0 %

You might be interested in
A recipe will make 10 pancakes that are 8 inches in diameter. If you decide to
pashok25 [27]
10 pancakes produces 8 inches in diameter. 
The area of 1 pancake is 
Area = pi * r^2
Area = pi * 4^2
Area = 50.27 in^2
Then multiply it by 10
Total area = 502.65 in^2

A smaller pancake
Area = pi * r^2
Area = pi * 2^2
<span>Area = 12.56 in^2

Divide 502.65 by 12.56
= 502.65 / 12.65
= 39.74

So there are 39 pancakes.

</span>
8 0
3 years ago
Tenemos 2 rectangulos, el primero mide 15 centimetros de largo y 4 centimetros de ancho al formar el segundo rectangulo se dupli
sergey [27]

Answer:

El segundo rectangulo va medir 30 centimetros de largo y 8 centimetros de ancho.

Step-by-step explanation:

Duplicar las medidas significa que vamos multiplicar las medidas por 2.

15 cm × 2= 30 cm

4 cm × 2= 8 cm

Espero que te ayude!

8 0
3 years ago
A box of nails costs $2.25. A box of screws costs 1.2 times as much as the box of nails.
s2008m [1.1K]

Answer:

$2.70

Step-by-step explanation:

2.25*1.2 = 2.7

8 0
2 years ago
Read 2 more answers
How many times can 16 go into 50
ExtremeBDS [4]
Three times. The remainder would be 2.
5 0
3 years ago
Read 2 more answers
Solve equation<br> 7+3x-12x=3x+1
inysia [295]
7+3x-12x=3x+1
We will first make all the numbers which have x in go to the left.
So 7+3x-12x-3x, we make the 3x negative since to make it move it needs to change.
Then we will make all the sevens go to the right, so 3x-12x-3x=1-7.
So now it is much easier to figure out.
-12x=-6
4 0
3 years ago
Other questions:
  • Which graph represents y−4=2(x−3) ?
    14·1 answer
  • List all the factors of 52 from least to greatest. Enter your answer below,
    12·1 answer
  • : . . . 3. at 18 thy Quot-lent of 1,000 ~ ., . ‘ : - - '2; iv . 44 a mm fl ‘ 4'. a '3 ,. -, . ,. , . 3' k , it ’ » ' ' ‘ ‘ V . .
    13·1 answer
  • The rectangle below has an area of x^2 - 9 square meters and a width of x - 3 meters.
    15·1 answer
  • Solve equation <br> t + (-8) + 13 = 43
    14·2 answers
  • Can a dot plot have a gap if there is only one number in between two values??
    7·1 answer
  • Is it a function or not a function?
    14·2 answers
  • PLZ HELP IM ON A TIMER!!!!
    14·1 answer
  • F(x) = 7x -9
    12·1 answer
  • Kevin hired a moving company. The company charged $400 for its services, and Kevin gives the movers a 15% tip. How much does Kev
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!