130k views
4 votes
Suppose you have an opaque bag filled with 6 red, 4 green, 7 blue and 5 purple balls.6. What is the probability of randomly pulling a blue ball from the bag, returning it, and pulling a red ball on your second pull?7. What is the probability of randomly pulling a purple ball from the bag, returning it, and pulling a blue ball on your second pull?

User Fowl
by
4.4k points

1 Answer

2 votes

SOLUTION:

Step 1:

In this question, we are given the following:

Suppose you have an opaque bag filled with 6 red, 4 green, 7 blue and 5 purple balls.

6. What is the probability of randomly pulling a blue ball from the bag, returning it, and pulling a red ball on your second pull?

7. What is the probability of randomly pulling a purple ball from the bag, returning it, and pulling ablue ball on your second pull?

Step 2:

PART 6:

We have 6 red, 4 green, 7 blue and 5 purple balls

Total = 6 + 4 + 7 + 5 = 22

The probability of randomly pulling a blue ball from the bag, returning it, and pulling a red ball on your second pull =


\frac{7\text{ }}{22}\text{ x }(6)/(22)=(42)/(484)=(21)/(242)

PART 7:

The probability of randomly pulling a purple ball from the bag, returning it, and pulling a blue ball on your second pull =


(5)/(22)\text{ x}(7)/(22)=(35)/(484)

User George Skelton
by
4.0k points