Question 1160578
p(a given b) = p(a and b) / p(b)
p(a given b) = .70
p(b) = .60
find p(a and b)
p(a given b) = p(a and b) / p(b) becomes:
.7 = p(a and b) / .6
solve for p(a and b) to get:
p(a and b) = .7 * .6 = .42
that's your solution.