The following data represent exam scores in a statistics class taught using traditional lecture and a class taught using a​ "flipped" classroom. Complete parts​ (a) through​ (c) below.
Traditional
70.9
69.0
80.5
67.3
86.4
77.0
56.6

82.4
81.2
70.5
63.6
70.5
60.3
Flipped
76.5
71.0
64.4
72.8
79.0
91.8
78.3
76.0
81.4
69.4
92.6
77.8
76.9
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Part 1
​(a) Which course has more dispersion in exam scores using the range as the measure of​ dispersion?
The traditional course has a range of 29.829.8​, while the​ "flipped" course has a range of 28.228.2. The
traditional
course has more dispersion.
​(Type integers or decimals. Do not​ round.)
Part 2
​(b) Which course has more dispersion in exam scores using the sample standard deviation as the measure of​ dispersion?
The traditional course has a standard deviation of 24.424.4​, while the​ "flipped" course has a standard deviation of 29.129.1. The
flipped course has more dispersion.