From a bag with 4 red, 1 blue, and 5 green marbles, what is the probability of drawing a blue marble?

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Multiple Choice

From a bag with 4 red, 1 blue, and 5 green marbles, what is the probability of drawing a blue marble?

Explanation:
Probability is found by counting how many outcomes are favorable over how many outcomes are possible in total. Here, there are 10 marbles in the bag (4 red + 1 blue + 5 green). Only one of those is blue, so the number of favorable outcomes is 1. The probability of drawing a blue marble is 1 out of 10, written as 1/10, which is 0.1 or 10%. The other fractions would require more blue marbles or fewer total marbles, which isn’t the case here.

Probability is found by counting how many outcomes are favorable over how many outcomes are possible in total. Here, there are 10 marbles in the bag (4 red + 1 blue + 5 green). Only one of those is blue, so the number of favorable outcomes is 1. The probability of drawing a blue marble is 1 out of 10, written as 1/10, which is 0.1 or 10%. The other fractions would require more blue marbles or fewer total marbles, which isn’t the case here.

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