According to the Department of Institutional Planning as well as Assessment, approximately 20% of undergraduate CCU students are concerned in the Greek system (fraternities and sororities). A random sample of 12 undergraduates CCU students is chosen.
A) Describe the random variable of interest, the number of trials, and probability of success.
B) Determine the probability that exactly seven of these students are Greek?
C) What is the probability that most 2 of these students are Greek?
D) What is the probability that more than 3 of these students are Greek?
E) Find P(1
F) Find P(1 less than or equal to X < 5)
G) Find the mean of this random variable
H) Find the standard deviation of this random variable