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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.

a. Which course has more dispersion in exam scores using the range as the measure of​ dispersion?
b. Which course has more dispersion in exam scores using the sample standard deviation as the measure of​ dispersion?
c. Suppose the score of 59.1 in the traditional course was incorrectly recorded as 591. How does this affect the​ range?
How does this affect the standard​ deviation?