Mathematics, 12.02.2020 01:14 heyitseddie06
A survey of cars on a certain stretch of highway during morning commute hours showed that 70% had only one occupant, 15% had 2, 10% had 3, 3% had 4, and 2% had 5. Let Xrepresent the number of occupants in a randomly chosen car.
a. Find the probability mass function of X.
b. Find P(X ≤ 2).
c. Find P(X > 3).
d. Find μX.
e. Find σX
Answers: 1
Mathematics, 21.06.2019 17:30
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The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers
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An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3
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