Question: A survey on cola type soft drinks vs. non-cola was report in 1999 with the following quality ratings of 0 to 100.

Cola 56 44 62 36 39 53 50 65 45 40 56 68 41 30 40 50 56 30 22

Non-cola 62 53 75 42 47 40 34 62 52 50 34 42 36 75 80 47 56 62

Construct two stem-and-leaf displays, and discuss similarities and differences for the two types of soft drinks.