Question
You draw a marble from a jar containing 5 red marbles, 5 green marbles, and 6 blue marbles. Find the probability of drawing a green given that you did not draw a red.
P(green | not red)
P(green | not red)
Answers
Reiny
The formula for conditional prob is
Prob( A | B) = P(A and B)/P(B)
but you said you were drawing "a marble" suggesting only one is drawn.
Prob( A | B) = P(A and B)/P(B)
but you said you were drawing "a marble" suggesting only one is drawn.