A store manager is looking at past jewelry sales to determine what sizes of rings to keep in stock. The list shows the ring size
s purchased by the last ten jewelry customers. 9, 7, 6.5, 7.5, 7, 8, 5, 6, 7.5, 8 What is the variance of the data? Round to the nearest hundredths. 0.40
0.72
1.28
2.14
