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%

Step-by-step explanation:

Probability for any event = $\dfrac{\text{Number of favorable outcomes}}{\text{total outcomes}}$

Given: Number of defective calculators = 25

Total calculators = 500

The probability that a calculator chosen at random will be defective= $\dfrac{25}{500}$

$=0.05$

$=0.05\times100\%\\\\= 5\%$

Hence, the required probability = 5%