Question

What is the expected value of x?

8

10

8.5

10.8

Answer 1

Above in your question is that your answer choices?

Answer 2

Yes those are the choices

Answer 3

So for what you already know which answer choice do you think it could be?

Answer 4

10?

Answer 5

old question but
expected value is (value of X) * (probability of X) summed across all X values

applying this to the problem, the first value is 0 and the probability of that value is P = 0.15 so you'd multiply 0 * 0.15, repeat with the other X values, and sum the results.