Question

A student answered 40 out of 50 trivia questions correctly. If tomorrow he answers 250 questions in total, what is a good prediction of the percent he will answer correctly?

Answer 1

40/50 = 0.8 = 80%

so if he answers 250 questions.....a good prediction that he would answer correctly is 80% of 250....which is 0.80(250) = 200 questions correct