Question

A jar contains "x" black and "y" white balls. What is the probability that a random draw is black?

1. x/y
2. x/(x + y)
3. y/x

Answer 1

you have to find the probability of 1 out of 2 items, so your answer would be
\(\dfrac{x}{(x+y)}\)
because x+y gives you the total amount of items and x is the probability you're looking for.

Answer 2

Thank youu

Answer 3

1: Black
2: Black
3: White