Given events A and B with probabilities P(A ) = 0.5, P(B) = 0.4, and P(A and B) = 0.2, are A and B independent?
A) yes B) no C) cannot be determined
Question 2
A university must choose a team of 5 students to participate in a TV quiz show. The students will be chosen at random from a pool of 44 potential participants of whom 20 are women. The random variable X represents the number of women on the team.
A) hypergeometric; N = 44, n = 5, k = 20, x = 0, 1, 2, 3, 4, 5
B) hypergeometric; N = 44, n = 20, k = 5, x = 0, 1, 2, 3, 4, 5
C) hypergeometric; N = 44, n = 5, k = 20, x = 0, 1, 2, . . . , 20
D) not hypergeometric
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