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A Normal Population Has a Mean μ=30\mu = 30 And Standard Deviation

Question 18
Multiple Choice
arrowQuestion 18arrow
Multiple Choice

A normal population has a mean μ=30\mu = 30 and standard deviation σ=7\sigma = 7 What is the probability that a randomly chosen value will be greater than 31 ?

A) 0.4443
B) 0.7881
C) 0.5557
D) 0.7580

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