Statistics Homework Solutions
#3633
Standard deviation
Please use MINITAB to solve or explain how I can use MINITAB to solve.
7. Assume that the midterm's scores X are normally distributed. Let X have a mean of 72 and a standard deviation of 12. Then answer the following three questions:
a. What is the probability of obtaining a score at least 90?
b. What is the probability of obtaining a score at most 75?
c. What is the probability of obtaining a score between 60 and 79?
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