In a batch of 890 calculators, 12 were found to be defective. what is the probability that a calculator chosen at random will be defective? write the probability as a percent. round to the nearest tenth of a percent if necessary.

1.3% is 12/890 as a percentage to the nearest tenth

Hello!

The probability of this event is 12/890. To convert that to a percent we will divide 12 by 890 and then multiply by 100 to get our percent.

12/890≈0.01
0.01·100=1%

There is about a 1% chance of the calculator being defective.

I hope this helps!