03-03-2016
Mathematics

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if you roll a normal dice 120 times .how many 4s would you except to get

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03-03-2016

Roll the dice 120 times

Number of outcomes from rolling the dice = 6
Probability of 4 falling in 1 roll = 1/6

Probability of the number of 4s in 120 rolls = 120 * 1/6
= 20 times

The probability that 4s falls in 120 dice rolls is 20 times.

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