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A data set containing 70 observations each reported to one decimal place is to be split into eight categories. The largest observation is 75.1 and the smallest is 16.3.
(a) These data are covered by an interval of what length?
(b) Using the method outlined in this section, each category will be of what length?
(c) Since these data are reported to the nearest 1/10, a unit is 1/10 and a half unit 1/2 . 1/10 = 1/20 = .05, is What is the lower boundary for the first category?
(d) What are the boundaries for each of the eight categories?
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