A bag has five red marbles, six blue marbles, and four black marbles. What is the probability of picking a blue marble, replacin
g it, and then picking a red marble
1 answer:
Probability = favorable event/total number of events
number of blue=6
total number of possibilities = 15
then P(blue)=6/15 = 2/5 =0.40
W replace it again (so the total number is always 15) & we draw a Red:
P(Red) = 5/15 =1/3 = 0.33
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