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16 October, 20:42

A basket of beads contains 8 red beads 6 yellow beads and 6 green beads. A bead will be drawn and replaced 150 times. What is a reasonable prediction for the number of times a green bead is drawn

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  1. 16 October, 21:27
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    To make a reasonable prediction, you can create a proportion using the ratio of green beads to total beads and make it equal to x green out of 150 trials.

    green 6 x

    total 20 = 150; use cross products to solve for x green beads.

    15 x 6 = 20x

    900 = 20x

    20 20

    x = 45 green

    A reasonable prediction would be 45 green beads based on theoretical probability.
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