Seven customers enter a clothing store and are observed to determine if they will make a purchase. the store owner states that there is a 75% chance of a customer making a purchase. the random variable x represents a customer making a purchase. calculate the mean, variance and standard deviation for the number of customers that make a purchase.

Mean = 5.25

Variance = 1.3125

Standard deviation = 1.456

Step-by-step explanation:

The mean and variance of a binomial distribution with parameters n (number of trials) and p ( the probability of getting success in each trial) is given by :-

Given : The total number of enter a clothing store : n=7

The probability of a customer making a purchase= 0.75

Now,

where is the page?

step-by-step explanation:

- 70

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