When a die is rolled twice, if the event of getting an even number is denoted by a success and the number of successes as a random and the number of successes as a random variable, then distribution and mean of the variate are

Options

A. `{:(0,1,2),(1//4,1//2,1//4):}, mu = 1`
B. `{:(0,1,2),(1//3,1//2,1//4):}, mu = 2`
C. `{:(0,1,2),(1//2,1//3,1//4):}, mu = 3`
D. `{:(0,1,2,3),(1//4,1//4,1//4,1//4):}, mu = 1`

Answer

A