Please help

https://sicc.instructure.com/courses/741972/assignments/9742645?module_item_id=15769230 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? O left skewed O symmetric O right skewed (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 43 students is above 74? P(I > 74)= (please round to four decimal places) (d) What is the probability that the average score for a random sample of 43 students is below 68? P(I