Question

a bag contains 3 red balls, 4 green balls, and 2 yellow balls. deborah reaches into the bag and pulls out the following 4 balls: red, red, green, yellow. deborah reaches into the bag to pick out another ball. whats the probability that the ball she picks is green?

Explanation:

Step1: Calculate remaining balls

Initially, there are $3 + 4+2=9$ balls. After taking 4 balls, there are $9 - 4=5$ balls left.

Step2: Calculate remaining green balls

There were 4 green balls initially and 1 green ball was taken. So there are $4 - 1 = 3$ green balls left.

Step3: Calculate probability

The probability $P$ of picking a green ball is the number of green balls left divided by the total number of balls left. So $P=\frac{3}{5}=0.6 = 60\%$.

Answer:

60%