Question

100 persons are surveyed about their smoking habits. The results are shown below 셀 Do you smoke? k13 emale 112 What is the probability that a randomly selected male is a smoker? (3 decimals) Number Seven voters are drawn at random from a large population consisting of 25% Conservatives (C), 30% Liberals (L) and 45% New Democrats (N). Let Y be the number of Liberals in the sample. Then P(Y-3) is: 0.0681 O 0.6908 0.1475 0.2269 A random variable W takes values 1 and 2, where, P(W mean (expected value) of W? 1-0.55, P(W 2-0.45. Which of the values below is closest to the о 0.9 1.45 0.45 О 0.55

Answer 1