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9 March, 09:50

Approximately 10% of all people are left-handed. If 200 people are randomly selected, what is the expected number of left-handed people? Round to the whole number. Do not use decimals. Answer:

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  1. 9 March, 12:21
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    N (L) = 20

    The expected number of left handed people is 20.

    Step-by-step explanation:

    Given;

    Percentage of left handed people P (L) = 10%

    Total number of selected people N (T) = 200

    The Expected number of left handed people N (L) is;

    N (L) = Total number of selected people * Percentage of left handed people/100%

    N (L) = N (T) * P (L) / 100%

    Substituting the given values;

    N (L) = 200 * 10%/100%

    N (L) = 200 * 0.1

    N (L) = 20

    The expected number of left handed people is 20.
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