Of the students in your class, 95% are between 140 cm and 180 cm tall. Assuming that these data are normally distributed, what is the mean height of the students?
A)140 cm
B)150 cm
C)160 cm
D)170 cm
E)180 cm

Question

Quizplus · Accepted Answer

In a normal distribution, the mean, median, and mode are all equal. Therefore, the mean height of the students falls exactly in the middle of the given range, which is (140+180)/2 = 160 cm.

Of the Students in Your Class, 95% Are Between 140