Statistics
posted by Mo .
if 25% of all students asked say they spend too much time on homework, and 12 students are selected at random, what is the expected number of students who say they spend too much time on homework?

0.25 * 12 = ?
posted by Mo .
if 25% of all students asked say they spend too much time on homework, and 12 students are selected at random, what is the expected number of students who say they spend too much time on homework?
0.25 * 12 = ?