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Question2 - Normal distribution Scores on a recent national statistics exam were normally distributed with a mean of 55and a standard deviation of 3. 1.What

Question2 - Normal distribution

Scores on a recent national statistics exam were normally distributed with a mean of 55and a standard deviation of 3.

1.What is the probability that a randomly selected exam will have a score of at least 62?

2.In the question above, you should have calculated a z score. Why isn't the z score the answer to the question?

3.What percentage of exams will have scores between 51and 59?

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