Carter rolls a fair number cube 18 times. which is the best prediction for the number of times he will roll a number that is odd and less than 3?

Simplified

There are 6 numbers on a die. So the probability over all to get either of those 6 numbers is 1/6 if you roll just once. The only number that is odd and less than 3 is 1. 1 is one of those 6 numbers so the probability to get a number odd and less than three in 18 rolls is 3/18 which is also 1/6 if it needs to be simplified