Question

It is reported that 72% of working women use computers at work. Choose 5 working women at random. Find

a. The probability that at least 1 doesn't use a computer at work

b. The probability that all 5 use a computer in their jobs

Answer 1

I'm not sure how someone can help you with this... If you don't understand it, I will happily explain it.
*It is asking you to choose five women that work every day or every other day and observe them. What's the probability that at least one of them does not use a computer at work. What's the probability that all five of them use a computer at work.
*The chances of someone not using a computer at work are going to be slim to none depending on their job. Take teachers for example. They use their computers every day to do at least part of their job. So choose five teachers, and make a decision based off of them. I hope this helped you!

Answer 2

well, just using what iss given and assuming it is true

probability that woman uses computer at work = .72

so probability not = 1-.72 = .28

Binomial distribution

prob 5/5 yes = C(5,5) .72^5 *.28^0
= 1 * .72^5 * 1
= .72^5 = .193 (second answer)
so prob that someone does not = 1-.193
= .807 (first answer)

Answer 3

Yes
Yes
Yes
Yes
Yes
Yes

Answer 4

Why can't I understand..!.