Question

If there were 500 students in Jamal’s class, approximately how many actual students scored higher than Jamal on the quiz if Jamal had a z-score of -1? a. 340 b. 420 c. 250 d. 490

Answer 1

it's 490 because when you get a zero or less it takes 10 points off your grade which leaves 490 students with good grades.