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Home > CC2 > Chapter 9 > Lesson 9.1.2 > Problem 9-41

9-41.
  1. Thu has a bag with 7 green marbles, 5 blue marbles, and 4 red marbles. For each part below, if the marble selected is replaced before the next marble is drawn, what is the probability that she will draw. Homework Help ✎

    1. A red marble?

    2. A red or a green marble?

    3. An orange marble?

Remember that probability can be written as a fraction:

How many red marbles are there?
How many total marbles?

See part (a).

See part (a).