A jar has 5 marbles, 1 of each of the colors red, white, blue, green, and yellow. If 4 marbles are removed from the jar, what is the probability that the yellow one was removed?
- 1/20
- 1/5
- 1/4
- 4/5
Explanation
Total marbles = 5
You remove 4 marbles (randomly)
We want the probability yellow is among the 4 removed.
There are 5 marbles, and you’re removing 4, so the chance that yellow is among them is:
= Number of favorable outcomes / Total outcomes
Yellow is in 4 out of 5 possible selections →
P(yellow is removed) = 4/5
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