Question

25, 8, 10, 35, 5, 45, 40, 30, 20

What is the upper quartile of the data set above?
A. 35
B. 37.5
C. 37
D. 40

Answer 1

B.) 37.5.. First you place all the numbers in order from least to greatest. Your mean is 25...and ur upper quartile because the 4 #'s fall even u add 35 and 40 and divide by 2... Which gives u upper quartile of 37.5 and lower quartile of 9. Hope this helps :)