4.36 Stats final scores: Each year about 1500 students take the introductory statistics course at a large university. Th

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4 36 Stats Final Scores Each Year About 1500 Students Take The Introductory Statistics Course At A Large University Th 1 (132.12 KiB) Viewed 32 times

4.36 Stats final scores: 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? Oright skewed O left skewed O symmetric (b) Would you expect most students to have scored above or below 70 points? O below O above (c) What is the probability that the average score for a random sample of 48 students is above 75? P5 > 75)= (please round to four decimal places) (d) What is the probability that the average score for a random sample of 48 students is below 66? Plī <66) = (please round to four decimal places) < (e) What is the probability that the average score for a random sample of 48 students is between 68 and 81? P(68 < <81) (please round to four decimal places)