(Answered) What is the probability that the mean starting salary is

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Graduates from a graphic arts course at a community college have a mean starting salary of $32,000 with a standard deviation of $3,500. From a sample of 81 graduates, what is the probability that the mean starting salary is between $31,000 and $33,000?

0.0051
0.2282
0.4949
0.9898

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