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## Homework Statement

A Company manufactures bulb. 4 percent of it are defective. A Supervisor selects 2 bulbs at random. What is the probability that atleast one of the bulb is not defective?

## Homework Equations

## The Attempt at a Solution

probability of selecting atleast one non defective bulb = 1 - probability of selecting 2 defective bulbs

= 1 - C[4,2]/C[100,2]

= 824/825

IS IT RIGHT?