200
1. Identify the mode below:
1, 3, 5, 7, 7, 9, 9, 9, 11, 13, 15, 15, 17
2. A class of nine students completed a mid-term exam. The most appropriate measure of the variability of these scores is probably
a) variance
b) range
c) standard deviation
d) central tendency
1. What is 9
2. What is range (b)