On a biased dice the probability of getting 1 is 0.3. The ice is rolled 150 times. How many ones would you expect to roll?

Question

On a biased dice the probability of getting 1 is 0.3. The ice is rolled 150 times. How many ones would you expect to roll?

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Yến Oanh 2 months 2021-09-02T15:09:53+00:00 1 Answers 20 views 0

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    2021-09-02T15:11:39+00:00

    Answer:  45

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    Work Shown:

    n = number of rolls = 150

    p = probability of rolling a “1” = 0.3

    n*p = expected number of “1”s that show up out of the 150 rolls

    n*p = 150*0.3

    n*p = 45

    We expect about 45 ones will show up.

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