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Let X = number of prior convictions for prisoners at a state prison at which there are 500 prisoners. X= (0,1,2,3,4) and has a number of prisoners = 75,270,90,50,15), respectively. Find P(X), mean, variance and standard deviation.
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Answer:
mean = 100
variance = 7870
Standard deviation = 88.7130
Step-by-step explanation:
mean = = 500/5 = 100
Variance =
=
= 39350/5
= 7870
Standard deviation = = = 88.7130