Question

A group of 500 transistors is known to contain one defective unit. What is the probability that a transistor selected at random from the lot is the bad one? 1/500 499/500 1/499

Answer 1

the answer is 1/500 because it will always be the probability of the event occurring/total events

Answer 2

Option A is correct.

Explanation:

Given: Number of transistors in a lot = 500

Number of defective transistors in a lot = 1

To find: Probability of selecting a defective transistor from the lot.

`Probability=(Number\:of\:Favorable\:Outcome)/(Total\:Number\:of\:Outcome)`

`Probability\:of\:getting\:a\:bad\:transistor=(1)/(500)`

Therefore, Option A is correct.