A business organization needs to make up a 5 member fund-raising committee. The organization has 10 accounting majors and 8 finance majors. In how many ways can the fund-raising committee be formed if at most 1 accounting major is on the committee?
a) 756b) 66c) 56d) 700e) 10

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

Sam is picking fruit from a basket that contains many different kinds of fruit. which set of events is independent?