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1 April, 09:14

A number cube with the numbers 1, 2, 3, 4, 5, and 6 is rolled 1000 times. About how many times would it be expected that a number less than 5 is rolled?

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  1. 1 April, 09:47
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    The numbers less than 5 are expected to occur 666 times ...

    Step-by-step explanation:

    First of all, we have to find the probability of rolling a number less than 5 in a single trial

    The numbers from 1 to 4 are less than 5 so the probability of rolling a number less than 4 is: 4/6 = 2/3

    So,

    Expected value = Probability * Number of Trials

    = 2/3 * 1000

    = 2000/3

    = 666 times ...
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