Answer: 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,

Answer:
x = 8
x = -10
Step-by-step explanation:
Elijahlouis, I will not sure how I am going on with my friends. we will need the following
Can you give the choices please
<span>ΔABC is not a right triangle.</span>