Question:

Probability with marbles?

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A box contains four red marbles, seven white marbles, and five blue marbles. If one marble is drawn at random, find the probability for each of the following:

a. A blue marble is drawn: ________

b. A red or blue marble is drawn: _____

c. Neither a blue or red marble is drawn

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5 ANSWERS


  1. 5/16

    4/16+5/16=9/16

    7/16


  2. a) 5/16

    b) 9/16

    c) 7/16


  3. total = 16

    a. 5/16

    b. 9/16

    c. must be white 7/16

  4. So the total number of marbles are 4 red + 7 white + 5 blue = 16 marbles.

    a. A blue marble is drawn: 5/16

    b. A red or blue marble is drawn: 4+5/16 = 9/16

    c. Neither a blue or red marble is drawn. (meaning white marble is drawn): 7/16.

    Hope I helped and choose me for best answer!

  5. a) 5/16

    b) 9/16

    c) 7/16

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