What is the conditional probability that a person who rode a rollercoaster also attended a musical review show

An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x

If you are just building your payment history, how many points from a perfect score will you possibly miss?

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6