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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?
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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?
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Apr 15, 2018
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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?
Mathematics
middle-school
Rrhartjr
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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
Erkan Demirel
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Apr 21, 2018
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Erkan Demirel
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