Correct answer only !

use the probability distribution graph to answer the question.

p(x ≤ a) = 0.6

what is the value of a?

a = 5.

Step-by-step explanation:

The graph here is a probability density graph. What will represent on the graph?

is the area

The area under the graph between 0 and 9 is a trapezoid. Consider the trapezoid in three slices from left to right:

The area of the leftmost triangle plus that of the rectangle is exactly 0.6. In other words, the area to the left of between the graph and the x-axis is . . .

As a side note shall be the only answer to this question since the area under the graph to the left of can only increase or stay constant but not decrease as the value of increases.

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

the answer would be c