The summer income of the 3,408 students at Van Buren High School last year was normally distributed with mean $1,751 and standard deviation $421. a. Approximately what percent of the students had incomes between $1,000 and $2,000? Round to the nearest percent. b. Approximately how many students had incomes less than $800? Round to the nearest integer.

Chapter 1, Application 1.6 #9

The summer income of the 3,408 students at Van Buren High School last year was normally distributed with mean $1,751 and standard deviation $421.
a. Approximately what percent of the students had incomes between $1,000 and $2,000? Round to the nearest percent.
b. Approximately how many students had incomes less than $800? Round to the nearest integer.