The probability distribution of a random variable X is shown below. x :-4 ,0, 4, 8
p(x): 0.15, 0.25, 0.20, 0.40

Q22: Find the following probabilities:
A:P(X 3)
C: P(0 D: P(X = 5)
E:Find E(X).
F:Find V(X).

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)

that one look

step-by-step explanation:

c.

step-by-step explanation:

simple you would first have to get   a negative number where as 1 to be multiplied by 24 and then you would have to multiply 6 time 4 and then repeat that process until you reach your term