William's Problem
Probability
Level
1
Someone picks one marble out of a bag which had four different colored marbles that are red, blue, orange and yellow. What is the probability that someone picks a red marble.
40%
23.6%
6%
25%
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There are 4 marbles that all have an equal chance of getting picked, so each marble has a 25% chance that it will get picked. Therefore the red marble has a 25% chance of getting picked.