7. Household size In government data, a household consists of all occupants of a dwelling unit. Choose an American household at random and count the number of people it contains. Here is the assignment of probabilities for the outcome. Number of persons Probability 1 0.25 2 34 5 0.32 7+ ? ? 0.07 0.03 0.01 6 The probability of finding 3 people in a household is the same as the probability of finding 4 people. (a) What probability should replace "?" in the table? Why? (b) Find the probability that the chosen household contains more than 1 person.

MATLAB: An Introduction with Applications
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7.
Household size In government data, a household consists of all occupants
of a dwelling unit. Choose an American household at random and count
the number of people it contains. Here is the assignment of probabilities
for the outcome.
Number of persons
Probability
1
0.25
2
3 4
0.32 ? ?
5
6
7+
0.07 0.03 0.01
The probability of finding 3 people in a household is the same as the
probability of finding 4 people.
(a) What probability should replace “?” in the table? Why?
(b) Find the probability that the chosen household contains more than 1 person.
Transcribed Image Text:7. Household size In government data, a household consists of all occupants of a dwelling unit. Choose an American household at random and count the number of people it contains. Here is the assignment of probabilities for the outcome. Number of persons Probability 1 0.25 2 3 4 0.32 ? ? 5 6 7+ 0.07 0.03 0.01 The probability of finding 3 people in a household is the same as the probability of finding 4 people. (a) What probability should replace “?” in the table? Why? (b) Find the probability that the chosen household contains more than 1 person.
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