Question 1093703
probability it is friday and it's your day off is 12%.


the probability that your work day is friday is 1/5.


the formula for p(a given b) is:


p(a given b) is equal to p(a and b) / p(b)


if you let a be the probability that it is your day off and you let b equal the probability that it is friday, then you get:


p(a and b) = 12% = .12.


p(b) = 1/5 = 20% = .2.


p(a given b) = p(a and b) / p(b) becomes:


p(a given b) = .12 / .2 = .6.


that's what i think the answer is for this problem.