Question

If the probability distribution is 1/10, 1/5, 1/2, x, what is the value of x? A. 1/5 b. 1/10 c. 3/10 d. 3/5

Answer 1

the answer in simple terms is A.1/5

Answer 2

You would make them all over 10, then subtract them from $\frac{10}{10}$
The probabilities are $\frac{1}{10}, \frac{2}{10}, \frac{5}{10}$
Add them together, you get, $\frac{8}{10}$
$10-8=2$ so $x=\frac{2}{10} or \frac{1}{5}$