Qand r are independent events. if p(q) = 0.8 and p(r) = 0.2, find p(q and r).

Then

P(RandQ)=P(R)×P(Q)

               =0.8×0.2

               =0.16

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's