Question

If a probability distribution is 5/12, 1/6, 1/3, x, what is the value of x

Answer 1

1/12 C

Explanation:

5/12

1/6=2/12

1/3=4/12

5/12-3=2/12

2/12+2=4/12

4/12-3= 1/12

Answer 2

The probabilities of all possible outcomes in a distribution must sum to 1.

`\frac5{12}+\frac16+\frac13+x=1\implies x=\frac1{12}`