a number cube is rolled 90 times. What is a reasonable prediction for the number of times it will land on a less than 3?

Question

the number cube is rolled 90 times. we need the prediction of times it will land on a number less then 3

Answer 1

Prob( x<3) = Prob(1) + Prob(2) = 2/6 = 1/3

1/3 * 90 = 30