Question

If you roll a dice 48 times how many times would you predict not to roll a 6?

Answer 1

Hi there!

Since there is a 1/6 chance of rolling a 6, we can just divide 48 by 6 and subtract it from 48:

48 / 6 = 8
48 - 8 = 40

So, the amount of times you would not roll a 6 is 40 times. 

Hope this helps!

Answer 2

Expected value (1/6) (120)=20