1.) What are the requirements for p(x)?

Group of answer choices

A.) p(x) must be >= 0 and total sum must be between 0 and 1

B.) p(x) must be >= 0 and total sum = 1

C.) None of the other choices is correct

D.) p(x) must be between 0 and 1 and total sum = 1

2.) Let X = time it takes a product to be made, from beginning to end. Suppose X is uniform between 15 and 20 minutes. What is f(x)?

Group of answer choices

A.) 1/20

B.)None of the other choices is correct

C.) 1/5

D.) 5/20 = 1/4

3.) Suppose f(x) = 1/100 from 50 to 150. What is the 75th percentile of X?

Group of answer choices

A.) None of the other choices is correct

B.) 125

C.) 112.5

D.) 75