Binomial probability - Assume that a procedure yields binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability p of success on a ...
Let X be a random variable representing the sum of trials. - Let X be a random variable representing the sum of trials. Then X is a binomial random variable if all of the following are satisfied except
a. no two trials can have the same outcome
...
Binomial Random Variable - 41.X is a binomial random variable with n = 20, and p = 0.7. Find the following
a) P(X = 18) =
b) P(X = 15) =
c) P(X ≤ 20) =
d) P(X ≥ 16) =
e) P(2 ≤ X ≤ 17) =
Probability calculation for binomial variable. - The past history shows that 60% of employees prefer Starbucks brand coffee. A sample of 5 employees is selected, what is the probability that less than 3 prefer Starbucks?
Probability of selling life insurance - 1. The probability that a life insurance salesperson following up a magazine lead will make a sale is 30%. A salesperson has two leads on a certain day. What is the probability that the salespers ...