The students are selling school pencils. If a red or green pencil is pulled from a bag, it is free. The bag contains:

5 red

10 green

15 yellow

20 blue

What is the probability that the first buyer will get a free pencil when randomly drawing one from the bag?

Question

Mathematics

Sanchez

7 May, 23:19

The students are selling school pencils. If a red or green pencil is pulled from a bag, it is free. The bag contains:

5 red

10 green

15 yellow

20 blue

What is the probability that the first buyer will get a free pencil when randomly drawing one from the bag?

+2

Answers (2)

Know the Answer?

Dario Foster · Answer 1

Blue because there are more blue pencils than any other color in the bag.

Kendall Wheeler · Answer 2

X=color pencil Red Green Yellow Blue

prob 5/50 10/50 15/50 20/50

50 is the total number of pencils

P (X=Red U X=Green) = P (X=Red) + P (X=Green)

U means union or "or"

Since they are disjoint, you can add the probabilities together.

=5/50+10/50

=15/50

=.3

=30%

The students are selling school pencils. If a red or green pencil is pulled from a bag, it is free. The bag contains:5 red10 green15 yellow20 blueWhat is the probability that the first buyer will get a free pencil when randomly drawing one from the bag?

The students are selling school pencils. If a red or green pencil is pulled from a bag, it is free. The bag contains:

5 red

10 green

15 yellow

20 blue

What is the probability that the first buyer will get a free pencil when randomly drawing one from the bag?