12. *
1 answer:
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Answer:
P(x = 0) = 0.004
P(x = 0) = 0.047
P(x = 0) = 0.211
P(x = 0) = 0.422
P(x = 0) = 0.316
Step-by-step explanation:
We are given the following information:
We treat a person who does not become a repeat offender as a success.
P(Success) = P(person who does not become a repeat offender) = 0.75
Then the number of people follows a binomial distribution, where
where n is the total number of observations, x is the number of success, p is the probability of success.
Now, we are given n = 4
We have to evaluate:
<u>Answer:</u>
5 hours was Aaron at the sitter
<u>Explanation: </u>
Cost of baby sitting for the first hour: 10
Cost of baby sitting for additional hour= 12
Total cost of babysitting= 58
Since the cost of first hour is 10
Hence the remaining cost after first hour
= 54-10
=48
Which means 1 hour is consumed in the first hour
Now to calculate the remaining hours for every additional hour
=
=4 hours
Hence the total hour Aaron was with the sitter
= 1 hour + 4 hours
= 5 hours