Suppose the Pew Research Center reported that approximately 40% of U.S. adults own a tablet computer. We are interested in the number of people who own a tablet computer out of 15 randomly selected U.S. adults. Round to the fourth for all answers.
a) If we randomly selected 15 U.S. adults over and over again, how many would we expect to have a tablet?.
b) Find the standard deviation of the distribution
c) How many combinations are possible for exactly 4 owning a tablet?
d) Find the probability of exactly 4 owning a tablet.
e) Find the probability of at most 8 owning a tablet and decide if it is unusual.
f) Find the probability of fewer than 4 owning a tablet and decide if it is unusual.