Problem
1. Assuming that the relevant distribution is normal, estimate the probability of the following events:
(a) That there will be 70 or more heads in the next hundred flips of a fair coin?
(b) That a randomly selected person will weight over 300 lbs?
2. The average on a history exam was 85 out of 100 points, with a standard deviation of 15. Was the distribution of the scores on this exam symmetric? If not, what shape would you expect this distribution to have? Explain your reasoning.