An organization with 2n people consists of n married couples. a committee of size k is selected, with all possibilities equally likely. find the probability that there are exactly j married couples within the committee.

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)

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?