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19 December, 06:06

On a biased dice, the probability of getting a 1 is 0.3

The dice is rolled 150 times

How many ones would you expect to roll?

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Answers (1)
  1. 19 December, 07:52
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    Well what you need to do is to times the probability with the number of rolls. therefore:

    0.3*150 = 45
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