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waterdrop026
20.02.2020 •
Mathematics
Three couples and two single individuals have been invited to an investment seminar and have agreed to attend. Suppose the probability that any particular couple or individual arrives late is 0.36 (a couple will travel together in the same vehicle, so either both people will be on time or else both will arrive late). Assume that different couples and individuals are on time or late independently of one another. Let X = the number of people who arrive late for the seminar.
(a) Determine the probability mass function of X. [Hint: label the three couples #1, #2, and #3 and the two individuals #4 and #5.] (Round your answers to four decimal places.)
x P(X = x)
0
1
2
3
4
5
6
7
8
(b) Obtain the cumulative distribution function of X. (Round your answers to four decimal places.)
x F(x)
0
1
2
3
4
5
6
7
8
Use the cumulative distribution function of X to calculate P(2 ≤ X ≤ 5). (Round your answer to four decimal places.)
P(2 ≤ X ≤ 5) =
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Ответ:
A 12
Step-by-step explanation:
the total amount of boys on the chart are 35 and 23 are already marked on the super slide, so that means that there are 12 people marked as the Ferris wheel because 35-23=12