Question

In a batch of 500 calculators, 25 were found to be defective. What is the probability that a calculator chosen at random will be defective? Write the probability as a percent.

Answer 1

Answer: 5%

Explanation:

Probability for any event =
`\frac{\text{Number of favorable outcomes}}{\text{total outcomes}}`

Given: Number of defective calculators = 25

Total calculators = 500

The probability that a calculator chosen at random will be defective=
`(25)/(500)`

`=0.05`

`=0.05*100\%\\\\= 5\%`

Hence, the required probability = 5%