The probability that edward purchases a video game from a store is 0.67 (event a), and the probability that greg purchases a video game from the store is 0.74 (event b). the probability that edward purchases a video game (given that greg has purchased a video game) is 0.67.

a.) events a and b are independent because p(a|b) = p(a)
b.) events a and b are dependent because p(a|b) = p(a)
c.) events a and b are independent because p(a|b) = p(b)
d.) events a and b are dependent because p(a|b) =/ p(a)