Round any intermediate numbers to four decimal placesRound final answer to the nearest integer

It is believed that on average 27% of all children have some kind of nut allergy. A kindergarten has registered 281 incoming children. With 95% certainty, what is the lowest number of children that will have any kind of nut allergy among the 281 incoming children. (Hint: 95% certainty is equivalent to 2 standard deviations above and below the mean)