Integral..Could you help me, please?

as we know, the integral of is

so, the integral of x. will be found as follows:

here, we will use a trick called 'integration by parts'

let x = u and = v

∫uv dx = u∫v dx - ∫[(du/dx)* ∫v dx] dx

∫x. dx = x∫ - ∫[(dx/dx) * ∫ dx ] dx

∫x. dx = x* - 1 *

= ( x - 1 )

8

step-by-step explanation:

this is a subtraction problem.

10 - 2 = 8

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