Each year about 1500 students take the introductory statistics course at a large university This...
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Statistics
Each year about 1500 students take the introductory statistics course at a large university This year scores on the final exam are distributed with a median of 74 points a mean of 70 points and a standard deviation of 10 points There are no students who scored above 100 the maximum score attainable on the final but a few students scored below 20 points a Is the distribution of scores on this final exam symmetric right skewed or left skewed left skewed Oright skewed O symmetric Or b Would you expect most students to have scored above or below 70 points above O below c What is the probability that the average score for a random sample of 40 students is above 75 x please round to four decimal places
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