Question

A consumer organization inspecting new cars found that many had appearance defects (dents, scratches, paint chips, etc.). While none had more than three of these defects, 7% had three, 11 % had two, and 21 % had one defect.
a) Find the expected number of appearance defects in a new car.
b) What is the standard deviation?


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  • CreatedMay 14, 2015
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