(I need these answered fast and with work and explanation)
A)What is the conditional probability of being on the marching band, given that you know
the student plays a team sport? Show your work.

b. What is the probability of being on the marching band, and how is this different from part
(a)? Explain completely.

C.
Are the two events, {on the marching band) and {on a team sport} associated? Use
probabilities to explain why or why not.