Consider a situation in which p(x) = 4/5 and p(y) = 1/4. if p(x and y) is = 1/5, which best describes the events?
they are independent because p(x) x p(y) = p(x and y).
they are independent because p(x) + p(y) = p(x and y).
they are dependent because p(x) x p(y) = p(x and y).
they are dependent because p(x) + p(y) = p(x and y).

 The correct option is

(A)

Step-by-step explanation:  We are given to consider a situation in which X and Y are two events such that

We are to select the statement that best describes the events X and Y.

We know that

any two events A and B are said to be independent if

We have, for events X and Y,

Thus, X and Y are independent because

Option (A) is CORRECT.

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a