B. 1/2
There are 3 odd numbers and 3 even numbers on a six sided cube. The probability of rolling an odd number on the first roll is 3/6 or 1/2. Since the events are independent, the probability of rolling an even number on the second roll is also 1/2. Therefore, the probability of both events happening is 1/2 x 1/2 = 1/4.
What is the probability of rolling an odd number on the first roll of a six sided cube and rolling an even number on the second roll?
A. 1/4
B. 1/2
C. 1
D. 2
1 answer
1 answer