1. The probability of an adverse reaction to a flu shot is 0.02. If the shot is given to 1000 people selected at random, what is the probability that:
a) 15 or fewer people will have an adverse reaction?
b) 25 or more people will have an adverse reaction?
c) Between 20 and 30 people will have an adverse reaction?

Tom says that he needs 6 rolls to obtain each possible outcome on a 6-sided die. on the fourth roll, he rolls his second "3”. tom says that the die is loaded and that each outcome is not equally likely. is tom correct here? if you think tom is incorrect, how many rolls should tom make until he sees each number occurring about 1/6 of the time?