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a) b) Exactly 90 people say they use the Internet. At least 90 people say they use the Internet.

a) b) Exactly 90 people say they use the Internet. At least 90 people say they use the Internet.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Please answer parts A and B using EXCEL: 

A survey of US adults ages 18-29 found that 93% use the Internet. You randomly select 100 adults ages 18-29 and ask them if they use the Internet. Find the probability that: a) b) c) d) Exactly 90 people say they use the Internet. At least 90 people say they use the Internet. That fewer than 90 people say they use the Internet. Are any of the probabilities in parts (a) and (c) unusual?
Transcribed Image Text:A survey of US adults ages 18-29 found that 93% use the Internet. You randomly select 100 adults ages 18-29 and ask them if they use the Internet. Find the probability that: a) b) c) d) Exactly 90 people say they use the Internet. At least 90 people say they use the Internet. That fewer than 90 people say they use the Internet. Are any of the probabilities in parts (a) and (c) unusual?
Expert Solution
Step 1: Given Information

Here given ,

A survey of US adults ages 18-29 found that 93% use the Internet. You randomly select 100 adults ages 18-29 and ask them if they use the Internet.
The sample size n is 100.

The probability of success p is 0.93. 

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