Question 2.232

95. Coffee Sales. Use Table 32 to answer the following:

  1. Use 7 classes of width 8 each, starting with the following leftmost class: 0 to < 8. Use the class boundaries you calculated in Exercise 91. Find the class midpoints.
  2. Construct a frequency polygon of the number of coffees sold.
  3. Use (b) to construct a relative frequency polygon of the number of coffees sold.
  4. Use the relative frequency polygon to find the relative frequency of days that fewer than 17 coffees were sold.

2.2.95

(a) 4, 12, 20, 28, 36, 44, 52

(b)

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(c)

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(d) 0.3404