Question 924353
p(a|b) = p(ab) / p(b)


p(b|a) = p(ab) / p(a)


you know what p(a|b) is and you know what p(b|a) is.


you also know that p(ab) is the same in either equation.


let x = p(ab) and replace p(a|b) with .7 and replace p(b|a) with .6 and you get:


.7 = x/p(b)


.6 = x/p(a)


solve for p(b) in the first equation to get p(b) = x/.7


solve for p(a) in the second equation to get p(a) = x/.6


since x/.6 is bigger than x/.7, p(a) must be bigger.