Answer: 5%
Step-by-step explanation:
Probability for any event = [tex]\dfrac{\text{Number of favorable outcomes}}{\text{total outcomes}}[/tex]
Given: Number of defective calculators = 25
Total calculators = 500
The probability that a calculator chosen at random will be defective= [tex]\dfrac{25}{500}[/tex]
[tex]=0.05[/tex]
[tex]=0.05\times100\%\\\\= 5\%[/tex]
Hence, the required probability = 5%
