Bag of Marbles

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There are 5 marbles in a bag: 4 are blue, and 1 is red. What is the probability that a blue marble gets picked?

Let me see.

Let E = selecting a blue marble

Let P(E) = probability of selecting a blue marble

P(E) = (what we want to take place)/(the total number of marbles in a bag)

P(E) = 4/5

Question:

All probabilities are between 0 and 1. This means that probabilities are decimals and/or fractions.

Yes?
 

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