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A survey of 63% Americans on answering machine if 14 Americans are selected at random find...

A survey of 63% Americans on answering machine if 14 Americans are selected at random find the probability that exactly 9 own And answering machine

What if at least 10 on answering machine

what if at least 10 owned Answering machine
Math   Statistics-And-Probability   
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Homework Answers

Answer #1

Hello Sir/ Mam

We know:

Hence, using the above formula,

p 63.00%
n 14
x
x P(x)
0 0.000001
1 0.000021
2 0.000238
3 0.001619
4 0.007583
5 0.025822
6 0.065950
7 0.128334
8 0.191201
9 0.217039
10 0.184776
11 0.114407
12 0.048700
13 0.012757
14 0.001552

Hence,

(a)

P(Exactly 9) = 0.217

(b)

P(Atleast 10) = 0.3622

I hope this solves your doubt.

Do give a thumbs up if you find this helpful.

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