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In a normal distribution with a mean of 25 and a standard deviation of 3, find...

In a normal distribution with a mean of 25 and a standard deviation of 3, find P(X < 20)

a) 0.6523

b) 0.1611

c) 0.9902

d) 0.8434

e) 0.0478

math   Statistics-And-Probability   
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