Question: 2.66 Ways to measure variability The standard deviation, the range, and the interquartile range (IQR) summarize the variability of the data. a. Why is the

2.66 Ways to measure variability The standard deviation, the range, and the interquartile range (IQR) summarize the variability of the data.

a. Why is the standard deviation s usually preferred over the range?

b. Why is the IQR sometimes preferred to s?

c. What is an advantage of s over the IQR?

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