When rolling a number cube 500 times, how many times can you expect to roll an odd number?

250 times

Step-by-step explanation:

Assuming this is a 6 sided cube, there is 3 odd number (1,3,5) so there is a 1/2 chance to roll an odd every time. If we roll the cube 500 times and expect it to land on an odd 1/2 the time, 1/2*500= 250.