The probability that a grader will make a marking error on any particular question of a multiple-choice exam is 0.10. If there a

Question

4 years ago

5

The probability that a grader will make a marking error on any particular question of a multiple-choice exam is 0.10. If there a

re ten questions and questions are marked independently, what is the probability that no errors are made?The probability that a grader will make a marking error on any particular question of a multiple-choice exam is 0.10. If there are ten questions and questions are marked independently, what is the probability that no errors are made?

Mathematics

1 answer:

Mrac [35] · Answer 1 · 2021-11-24T06:05:38+03:00

Mrac [35]4 years ago

8 0

Answer:

about 34.9%

Step-by-step explanation:

The probability of not making a marking error is 0.9. The probability of doing that 10 times independently is 0.9^10 ≈ 0.34868 ≈ 34.9%.