Question
A survey by KRC research for U.S News reported that 37% of people plan to spend more on eating out after they retire. 9 people
A survey by KRC research for U.S News reported that 37% of people plan to spend more on eating out after they retire. 9 people are randomly selected.
a. Determine the probability of exactly five people plan to spend more on eating out after they retire.
b). Determine the probability of fewer than four people plan to spend more on eating out after they retire.
c. Determine the probability of more than two plan to spend more on eating out after they retire.
d. What is the expected number of people who plan to spend more eating out after they retire?
e. What is the standard deviation of people who plan to spend more time eating out after they retire?
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Finite Mathematics
Authors: Stefan Waner, Steven Costenoble
6th Edition
1285415604, 9781285415604
