State the x-intercepts of the quadratic relation below, y =

a) 1 and –2
b) –1 and 0
c) –2, and 0
d) –1 and 2

Determine the required value of the missing probability to make the distribution a discrete probability distribution. x p(x) 3 0.23 4 ? 5 0.51 6 0.08 p(4) = nothing  (type an integer or a decimal.)