(d) What is the variance of the time it takes for a person to move? (e) Among ten people, what is the probability that three or fewer move in a given year?

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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May I know the answer of Q11 subpart,  d and e ? 

11. The annual probability of moving is 0.17.
(a) What is the probability that a person moves for the first time in the first year of
observation?
(b) What is the probability that the person moves for the first time in the fourth
year of observation?
(c) What is the mean time it takes for an individual to move?
(d) What is the variance of the time it takes for a person to move?
(e) Among ten people, what is the probability that three or fewer move in a given
year?
Hicoase
Transcribed Image Text:11. The annual probability of moving is 0.17. (a) What is the probability that a person moves for the first time in the first year of observation? (b) What is the probability that the person moves for the first time in the fourth year of observation? (c) What is the mean time it takes for an individual to move? (d) What is the variance of the time it takes for a person to move? (e) Among ten people, what is the probability that three or fewer move in a given year? Hicoase
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