Given 12 consecutive integers, how many ways can three of these integers be selected to give a sum which divides by 4. Disclaimer: A lot of points to be given, Full explanation required. Not only answer.

Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. the mean arrival rate is 10 passengers per minutes. compute the following probabilities. p(x = 4) p(x > 11)

An alternative to car buying is to make monthly payments for a period of time, and then return the vehicle to the dealer, or purchase it. this is called

Yvaries directly as x. y =90 when x=6. find y when x=13