Question: I would like to know why my answer is wrong for this probability distribution question? The distribution of weights of health club members is normally

I would like to know why my answer is wrong for this probability distribution question?

I would like to know why my answer is wrong for this

The distribution of weights of health club members is normally distributed with mean 200 and standard deviation 50. If a sample of 10 members is taken, what is the Z-score for an average weight of 130? Select one: a. -0.40 b. 4.50 X c. 2.05 d. 1.65

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