Question

The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.

Part A: Calculate the measures of center. Show all work. (5 points)

Part B: Calculate the measures of variability. Show all work. (5 points)

Part C: If you are interested in a larger class size, which school is a better choice for you? Explain your reasoning. (2 points)

Answer 1

Part A:

School A: Mean = 8.73, Median = 8.5

School B: Mean = 8.3 , Median = 8.0

Part B:

School A: Range = 5.25, Variance = 2.2675, Standard Deviation = 1.5072

School B: Range = 4, Variance = 1.2, Standard Deviation = 1.0955

Part C: School A would be a better choice for you if you are looking for larger class size. This is because School A has a higher mean and median, wider range, and a higher variability than School B.