Urgently answer, right triangle trignometry

So for this you will be doing proportions. Your equation will look like this:

Firstly, cross multiply:

Next, square root both sides of the equation, and your answer should be

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

6/20

step-by-step explanation: