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Chapter 15
Frequency Table
Figure 15-4
Frequency table for variable/situation
Each selected statistic iscomputed for each selected cell measure. The first column contains
estimates of the numberand percentage of the population that do or do not take vitamin/mineral
supplements. The confidence intervals are non-overlapping; thus,you can conclude that, overall,
more Americans take vitamin/mineral supplements than not.
Frequency by Subpopulation
Figure 15-5
Frequency table by subpopulation
When computing statisticsby subpopulation, each selected statistic is computed for each selected
cell measure by value of Age category.Thefirstcolumn contains estimates of the number and
percentageof the population of each category that do or do not take vitamin/mineral supplements.
The confidence intervals for the table percentages are all non-overlapping; thus, you can conclude
that the use of vitamin/mineral supplements increases with age.