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Normal Distribution (CDF,PDF)

Statistics
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The amount of money that a student carries on his person is normally distributed with mean: $25, STDV: $15. What is the probability that a randomly selected sample of 25 students will have an average amount of less than $22 on his person? 

Mar 14th, 2015

z = 22-25 / 15  = -0.2

Therefore Probability is 0.42

Mar 14th, 2015

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