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Let's say we have a box with 6 marbles: 3 red, 1 blue, 1 green, and 1 yellow. What is the probability of picking a yellow marble, keep it, and then picking a blue marble? A 1/12 B 1/30 C 1/36 D 1/11
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Let's say we have a box with 6 marbles: 3 red, 1 blue, 1 green, and 1 yellow. What is the probability of picking a yellow marble, keep it, and then

picking a blue marble?

A 1/12
B 1/30
C 1/36
D 1/11

User Csibi Norbert
by
4.7k points

1 Answer

9 votes
B. 1/30

Explanation: First you find the probability of picking a yellow marble, 1/6. Then you multiply the probability of picking a blue marble, 1/5 since there are now only five marbles total. Then multiply those to see what the final probability is, 1/6*1/5=1/30.
User BurtonLowel
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