taijaababy
20.07.2020 •
Mathematics
An automotive salesman determines that he has a 36% chance of selling a car to a random customer at his dealership. A group of eight customers is chosen at random. The salesman determines the probability of an event is as follows. (Start 2 By 1 Matrix 1st Row 1st Column 8 2nd Row 1st Column 3 EndMatrix )0.36 cubed 0.64 Superscript 5 Baseline plus (Start 2 By 1 Matrix 1st Row 1st Column 8 2nd Row 1st Column 2 EndMatrix )0.36 squared 0.64 Superscript 6 What does this probability represent? Choose the correct answer below. A. The probability represents exactly three or two customers buying a car. B. The probability represents more than two customers buying a car. C. The probability represents exactly three or two customers not buying a car. D. The probability represents less than three customers buying a car.
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Ответ:
The correct option is (A).
Step-by-step explanation:
Let the random variable X represent the number of cars sold by the automotive salesman.
It is provided that the probability of the salesman selling a car to a random customer at his dealership is, p = 0.36.
A random sample of n = 8 customers is chosen.
The events that a customer purchases a car is independent of the other customers.
The random variable X thus follows a Binomial distribution with parameters n = 8 and p = 0.36.
The probability mass function of X is:
The probability of an event is provided as follows:
The probability represents exactly three or two customers buying a car.
Ответ:
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Step-by-step explanation:
I honestly wish this wasn't your last resort...but uhm...i don't even know what to say...