112k views
0 votes
A compact disc is designed to last an average of 4 years with a standard deviation of 0.8 years.

What is the probability that a CD will last less than 3 years?

User Bela Ban
by
7.4k points

1 Answer

1 vote
3-4/.8=1.25
then use the probability z chart,

10.56%

!!!
User Sunnytown
by
8.4k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories