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5 votes
A bag contains 2 red beads, 1 yellow bead and 3 green beads. A bead is chosen at random.

(2 red beads, 1 yellow bead, and 3 green beads)
What is the probability that is not yellow?

2 Answers

5 votes
Add all the beads together:
2 red + 1 yellow + 3 green = 6 beads in total
Add together all the beads that are NOT yellow:
2 red + 3 green = 5 beads
Put the 5 that are not yellow over the total number:
5/6 is the probability that the bead selected at random will NOT be yellow
User Jpmcosta
by
4.3k points
2 votes

1/5

Explanation:

there is only one yellow bead 2 red and 3 green you add the red and green with a total of 5 getting a ratio of 1/5

User Murat
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4.5k points