Answer:
probability that a random draw is black = [tex]\frac{x}{x+y}[/tex].
Step-by-step explanation:
Given: A jar contains "x" black and "y" white balls.
To find: What is the probability that a random draw is black.
Solution: We have given that black balls = x
white balls = y
total balls = x + y
probability that a random draw is black = [tex]\frac{Number\ of\ outcome happen}{Total numer of outcomes}[/tex]
probability that a random draw is black = [tex]\frac{Ball\ drawn\ is\ black}{Total\ number\ of\ ball}[/tex].
probability that a random draw is black = [tex]\frac{x}{x+y}[/tex].
Therefore, probability that a random draw is black = [tex]\frac{x}{x+y}[/tex].
