18 Decide in each case whether X is a binomial random variable A fair die is rolled 20 times Let X be the number of times the die comes up 6 A standard deck of 52 cards contains four aces Four cards are dealt without replacement from this deck Let X be the number that are aces A simple random sample of 50 voters is drawn from the residents in a large city Let X be the number who plan to vote for a proposition to increase spending on public schools