1. Of 500 vehicles sold by an auto dealership last month, 200 have a defect that will require a factory recall for dealer correction. For a simple random sample of n 5 50 of last month's customers, what is the probability that no more than 15 will be affected by the recall?

2. Seventy percent of the registered voters in a large community are Democrats. The mayor will be   selecting a simple random sample of 20 registered voters to serve on an advisory panel that helps formulate policy for the community's parks and recreation facilities. What is the probability that the constituency of the committee  will be no more than 50% Democrats?