Question

In a shipment of 100 televisions, 6 are defective. If a person buys two televisions from that shipment, what is the probability that both are defective?

Answer 1

`1/330`

Explanation:

For the first television, 6 are defective out of 100 giving us `6/100`
For the second television, we assume defective is already purchased leaving `5/99` (5 defective televisions out of 99 left)

The probability that both are defective can be found by multiplying the two probabilities:

`6/100 * 5/99=1/330`