A bank's loan officer rates applicants for credit, the ratings are normally distributed with a mean of 200 and a standard deviation of 50. if 40 different applicants are randomly selected, find the probability that their mean is above 215.

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are: