Question: What is the probability that the sample mean will be less than 145? A random sample of n equal to 64 scores is selected from

What is the probability that the sample mean will be less than 145?

A random sample of n equal to 64 scores is selected from a normally distributed population with mu equal to 137 and sigma equal to 82. What is the probability that the sample mean will be less than 145? Hint: Use the appropriate formula for a sample. 78.23% O 0.78% O 21.77% O 0.78

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