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The population of IQ scores forms a normal distribution with mu equals space 100 and sigma...

The population of IQ scores forms a normal distribution with mu equals space 100 and sigma space equals space 15. If you take a random sample of 25 people who have taken the IQ test, what is the probability of obtaining a sample mean greater than M = 103?

p = 0.8413

p = 0.5793

p = 0.4207

p = 0.1578

math   Statistics-And-Probability   
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Answer #1

に100 n=25 林斥ー-400 3 = 1-0-8413

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