4. What is the probability?

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NOBFAVPU21

Mathematics

Description

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?

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Explanation & Answer

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

the probability is 0.8

that is more than 2.04yrs


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Anonymous
Awesome! Perfect study aid.

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