Question

if u roll a dice 18 times....how many times would u expect to get 4

Answer 1

For each roll, we'd expect a 4 to come up 1/6 of the time

Answer 2

For each roll, we'd expect a 4 to come up 1/6 of the time
18/6 = 3 times for 18 rolls. 
How i figured this was with my calculator and my mental math 
I hope this helps!