What is the probability of picking two women in a sample of


1. What is the probability of picking

(a) Two women in a sample of 5 drawn at random and without replacement from a group of 9 people, 4 of whom are women?

(b) Eight men in a sample of 10 drawn at random and without replacement from a population of 1000, half of which are men.

2. Past experience shows that there are two tra?c accidents at an intersection per week. What is the prob- ability of:

(a) Four accidents during a randomly selected week?

(b) No accidents?

(c) What is the expected value and standard deviation of the distribution?

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