To find P(red or pink), we need to add the probability of drawing a red marble to the probability of drawing a pink marble and then subtract the probability of drawing both a red and a pink marble at the same time.
P(red) = 7/(7+12+9) = 7/28 = 1/4
P(pink) = 9/(7+12+9) = 9/28
P(red and pink) = 0 (since you can't draw both a red and pink marble at the same time)
P(red or pink) = P(red) + P(pink) - P(red and pink)
P(red or pink) = 1/4 + 9/28 - 0
P(red or pink) = 7/28 + 9/28
P(red or pink) = 16/28
P(red or pink) = 4/7
Therefore, P(red or pink) is 4/7.
A bag contains 7 red marbles, 12 white marbles, and 9 pink marbles. Find P(red or pink) (1 point) Responses 712 7 over 12 9112 9 over 112 58 5 eighths 47
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