Mathematics, 06.02.2020 01:46 sandersmakaylaovq5vu
G4. you start a dog walking business. define to be a random variable denoting how many dogs you walkthis week. the probability mass function (pmf),f(x), o'is defined as follows:
0 1 2 3 4 5 6 7 p(x = x) 0.14 0.12 0.15 0.23 0.18 0.09 0.08 0.01
(a) verify that f(x) is a valid probability mass function.
(b) find the probability that you will walk at least two dogs this week.
(c) compute the expected number of dogs you will walk this week.
(d) compute the expected value of x2.
(e) compute var[x] = e(x2) – (e[x])2.
Answers: 2
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G4. you start a dog walking business. define to be a random variable denoting how many dogs you walk...
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