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14-04-2020
Mathematics

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on a biased dice the probability of rolling a 1 is 0.3
the dice is rolled 150 times
how may ones do you expect to roll?

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PollyP52 PollyP52

14-04-2020

Answer:

45.

Step-by-step explanation:

Expected number of 1's = probability of a 1 * number of rolls

= 0.3 * 150

= 45 .

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