students measured the diameters and circumferences of the tops of a variety of cylinders. Below are the data that they collected. estimate the diameter of a cylinder with circumference 22cm.

Cylinder Tops
Diameter(cm) 3,3,5,6,8,8,9.5, 10, 10, 12
Circumference(cm) 9.3,9.5, 16, 18.8, 25, 25.6,31.5, 30.9, 39.5