It’s the probability that X and Y fall between their stated limits within a continuous joint probability distribution. b. It’s the height of a joint continuous density function. c. It’s the joint probability that X equals some value and that Y equals some value in a joint discrete distribution. d. It’s the probability that X equals some value or that Y equals some value in a joint discrete distribution. e. It’s the expected value of X and Y, given a valid joint discrete distribution.

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step-by-step explanation:

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it