Question

The probability of drawing a pearl bead out of a bag of mixed beads is 2/3. What is the probability of drawing a bead which is not a pearl?

Answer 1

`(1)/(3)` probability of drawing a bead which is not a pearl

Explanation:

For each bead that you draw, there are only two possible outcomes. Either it is a pearl bead, or it is not. The sum of these probabilities = 100% = 1.

So

2/3 probability of drawing a pearl bead.

p probability of drawing a non pearl bead.

What is the probability of drawing a bead which is not a pearl?

`p + (2)/(3) = 1`

`p = 1 - (2)/(3)`

`p = (3*1 - 2)/(3)`

`p = (1)/(3)`

`(1)/(3)` probability of drawing a bead which is not a pearl