Question: I don't understand how to do this problem. Scores on a statistics final in a large class were normally distributed with a mean of 73

I don't understand how to do this problem.

Scores on a statistics final in a large class were normally distributed with a mean of 73 and a standard deviation of 7. Answer the following questions. Round your answers to 4 decimal places. Do NOT use scientific notation. a) What is the probability that a randomly chosen score is below 75? b) What is the probability that a randomly chosen score is above 96? c) If a sample of 36 students is chosen, what is the probability that the sample mean is between 69 and 73

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