Given: To predict future enrollment, a local school district wants to know the number of children in the district under the age of 5. Fifty households within the district were sampled, and the head of household was asked to disclose the number of children under the age of 5 living in the household. The results of the survey are presented in the following table.
........# of Children under 5........# of Households.......
........0..........................16.…
........1..........................18.…
........2..........................12.…
........3...........................3.…
........4...........................1.…
........# of Children under 5........# of Households.......
........0..........................16.…
........1..........................18.…
........2..........................12.…
........3...........................3.…
........4...........................1.…
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.......# of Children ..... .# of ............ relative
........under 5....... Households....... frequency
........0..........................16.… 16/50= 32%
........1..........................18.… 18/50 = 36%
........2..........................12.… 12/50 = 24%
........3...........................3.… 3/50 = 6%
........4...........................1.… 1/50 = 2%
--------------------------------------…
TOTALS ..................... 50 ............. 100%
You could also write relative frequencies as decimals
........under 5....... Households....... frequency
........0..........................16.… 16/50= 32%
........1..........................18.… 18/50 = 36%
........2..........................12.… 12/50 = 24%
........3...........................3.… 3/50 = 6%
........4...........................1.… 1/50 = 2%
--------------------------------------…
TOTALS ..................... 50 ............. 100%
You could also write relative frequencies as decimals