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Each year about 1500 students take the introductory statistics course at a large university. This year...

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Statistics

Each year about 1500 students take the introductory statisticscourse at a large university. This year scores on the final examare distributed with a median of 74 points, a mean of 70 points,and a standard deviation of 10 points. There are no students whoscored above 100 (the maximum score attainable on the final) but afew students scored below 20 points. a.Is the distribution ofscores on this final exam symmetric, right skewed, or left skewed?b.Would you expect most students to have scored above or below 70points? c.What is the probability that the average score for arandom sample of 40 students is above 75? (please round to fourdecimal places) Additionally, can this question be answered usingexcel or statcrunch?

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