A bag with 8 marbles has 4 fed -marbles, 3 bluo forbles, and 1 yellow marble. A marble is chosen from the bag at random/ what is the probability that it is not red?
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Answer

3. Calculate probability of not red: \(\frac{4}{8}\) = \(\frac{1}{2}\)

Steps

Step 1 ：1. Calculate total number of marbles: 4 red + 3 blue + 1 yellow = 8

Step 2 ：2. Calculate marbles that are not red: 3 blue + 1 yellow = 4

Step 3 ：3. Calculate probability of not red: \(\frac{4}{8}\) = \(\frac{1}{2}\)