4. What is the probability?

Statistics
Tutor: None Selected Time limit: 1 Day

The length of life of a certain type of laboratory machine is normally distributed with mean 4.2 years and variance 1.44. What is the probability that the length of life of a randomly selected machine is more than 2.04 years?

Jun 21st, 2015

Thank you for the opportunity to help you with your question!

f(x){n/x}=px(1-p)

the probability is 0.8

that is more than 2.04yrs


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Jun 21st, 2015

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