Jenny, a 31 year old female, bought a $135,00, 20-year life insurance policy through her employer. Jenny is paid semimonthly. Ho
w much is deducted from each of her paychecks for life insurance (use the table)
A.$18.28
B.$21.49
C.$32.85
D.$44.60
A.$18.28
B.$21.49
C.$32.85
D.$44.60
1 answer:
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Answer:
The mean number of adults who would have bank savings accounts is 32.
Step-by-step explanation:
For each adult surveyed, there are only two possible outcomes. Either they have bank savings accounts, or they do not. So we use the binomial probability distribution to solve this problem.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
The expected value of the binomial distribution is:
In this problem, we have that:
If we were to survey 50 randomly selected adults, find the mean number of adults who would have bank savings accounts.
This is E(X) when .
So
The mean number of adults who would have bank savings accounts is 32.