Question

Let the random variable X count the number of classes a full-time student enrolls in during a semester. The table gives the random variable's probability distribution

x	P(X=x)
3	0.05
4	0.26
5	0.51
6	0.14
7	0.04

A) Compute the probability that a student will enroll in more than five classes during the semester

B) Compute the probability that a student will enroll in at most five classes during a semester

C) Compute the probability that a student will enroll in exactly four classes during a semester

D) Compute and interpret P(4 <equal to X <equal to 6)

E) Using the mean and standard deviation, describe the typical full-time student's enrollment for a semester

Answer 1