Understanding Basic Statistics 6th Edition by Charles Henry Brase,Corrinne Pellillo Brase

تمرين 23

Salary Raise: Men According to the same survey quoted in problem 9, of the men interviewed, 20 % had asked for a raise and 59 % of the men who had asked for a raise received the raise. If a man is selected at random from the survey population of men, find the following probabilities: P (man asked for a raise); P (man received raise, given he asked for one); P (man asked for raise and received raise).