77. Exemplar Exercise Problem XXXVI

A carton of \(24\) bulbs contain 6 defective bulbs. One bulbs is drawn at random. What is the probability that the bulb is not defective? If the bulb selected is defective and it is not replaced and a second bulb is selected at random from the rest, what is the probability that the second bulb is defective?

 

The probability that the bulb is not defective is $\frac{i}{i}$.

 

The probability that the second bulb is defective without replacement is $\frac{i}{i}$.