Opening the paper…
Figure from the original question paper Figure from the original question paper Shruti will read either one chapter of her Geography book or one chapter of her history book with equal probability. The number of misprints in a chapter of her Geography book is Poisson distributed with mean 2 and the number of misprints in a chapter of her history book is Poisson distributed with mean 5. What is the expected number of misprints that she will come across in a chapter? Enter your answer correct to one decimal place.