A local county has an unemployment rate of 5.1%. A random sample of 19 employable people are picked at random from the county and are asked if they are employed. Round answers to 4 decimal places. a) Find the probability that exactly 2 in the sample are unemployed. b) Find the probability that there are fewer than 4 in the sample are unemployed. c) Find the probability that there are more than 2 in the sample are unemployed. d) Find the probability that there are at most 4 in the sample are unemployed