Mathematics, 25.09.2020 01:01 mslamaya11
There are 1000 households in a town. Specifically, there are 100 households with one member, 200 housholds with 2 memeber, 300 households with 3 members, 200 households with 4 members, 100 households with 5 members and 100 households with 6 members. Thus, the total number of people living in the town is:N = 100 * 1 + 200 *2 + 300 * 3 + 200 * 4 + 100 * 5 + 100 * 6 = 3300.
a. We pick a household at random, and define the random variable X as the number of people in the chosen household. Find the PMF and the expected value of X
b. We pick a person in the town at random, and define the random variable Y as the number of people in the household where the chosen person lives. Find the PMF and the expected value of Y
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