Question

in a batch of 280 water purifiers 12 were found to be defective. What is the probability that a water purifier chosen at random will be defective? Write the probability as a percent. Round to the nearest tenth of a percent if necessary. A. 4.3% b. 5.6% c. 95.7% d. 71.8%

Answer 1

The probability that a water purifier chosen at random will be defective is $\frac{12}{280}$ which as a percentage is 4.285714... rounded to 4.3%

Answer 2

the answer would be 4.3 percent