Fuel Economy. Refer to Table 7 on page 123 to answer Exercises 63–65. The data represent a sample.

Question 3.176

63. Find the following measures of spread for the number of cylinders:

  1. Range
  2. Variance
  3. Standard deviation

3.2.63

(a) 8 cylinders (b) 9.6 cylinders2 (c) 3.098 cylinders