11/20 A box contains 5 red marbles, 6 white marbles, and 4 blue marbles. Find P(red or blue)

Question

11/20

A box contains 5 red marbles, 6 white marbles, and 4 blue marbles. Find
P(red or blue)

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Verity 4 years 2021-08-21T14:33:41+00:00 1 Answers 13 views 0

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  1. kimcuc
    0
    2021-08-21T14:35:18+00:00
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    Answer: 3/5

    Step-by-step explanation:

    Probability is the number of favorable outcomes divided by the total number of outcomes. In this case, there are 5+4+6, or 15, possible outcomes, because there is one selection from 15 marbles. Therefore, the probability of choosing a blue marble is 4/15, and the probability of choosing a red marble is 5/15. Add these together to get the probability of choosing a red or blue marble:

    (4/15)+(5/15)=9/15

    9/15 simplifies to 3/5.

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