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balu736 [363]
3 years ago
14

Help ! please ! with 13, 14, 15, 16, 17, 18, 19, 20, 21,

Mathematics
1 answer:
sasho [114]3 years ago
3 0

Answer:

0.786

0.3563

0.234

0.9

0.324

0.847

0.34

0.446

0.245

Step-by-step explanation:

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Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 99 people
sertanlavr [38]

Answer:

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

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

= \frac{96}{378} + \frac{50}{378} - \frac{8}{378} \\= \frac{96+50-8}{378} \\= \frac{138}{378} \\= 0.365

8 0
3 years ago
What is the vertex? <br> What is the domain? <br> What is the range
kati45 [8]

domain-x intercept

range-y intercept

3 0
2 years ago
I'll give points just please help(it's a little long sorry:( A student randomly selects some crayons from a large bag of crayons
andrey2020 [161]

the probability of selecting a blue crayon for the bag is 16.7% while estimate probability of selecting a red crayon is 20% and the most likely crayon to be selected is brown crayon and also the possibility of getting a real possibility of the number of crayons in the bag is 60

3 0
4 years ago
Caelan has $ 7,500 in an account that earns 3.2% compounded interest annually. If she doesn't touch the money, how much will it
juin [17]

7500(1+0.032)5=

1.032 to the power of 5= 1.171

7500x 1.171=8,782

5 0
3 years ago
Your parents car initially costs $18,000 and it depreciates at a rate of 12% a year. How much will the car be worth after 5 year
coldgirl [10]

Answer:

Step-by-step explanation:

value after five years = $18,000×(1-0.12)⁵ = 18,000×0.88⁵ = $9,499.17

:::::

The value drops below $2,000 in the 17th year.

7 0
3 years ago
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