Answer to Question #47193 in Statistics and Probability for prromise ayansola

Question

The probability that Kodjo and Adoga pass an examination are 34 and 35 respectively. Find the probability of both boys failing the examination.
1/3
3/10
9/20
1/3

Answer 1

There is a mistake in the question: there should be 3/4 and 3/5 instead of 34 and 35. The probability of both boys failing the examination is (1-3/4)(1-3/5)=1/4*2/5=1/10 by multiplication rule of probability.