013. Relative Frequency Distributions

A Relative frequency distribution expresses the frequency percentage of the total number of observations in the sample. This allows to make statements regarding the number of observations in a single class relative to the entire sample. Using the data from Table 2.3 on passengers, it can be now computes a relative frequency distribution by dividing each frequency by the sample size 50. See Table 2.8.

Table 2.8 – Relative Frequency Distribution for Passengers

Class (passengers)	Frequency (days)	Relative Frequency
50 to 59	3	3/50 = 6%
60 to 69	7	7/50 = 14%
70 to 79	18	18/50 = 36%
80 to 89	12	12/50 = 24%
90 to 99	8	8/50 = 16%
100 to 109	2	2/50 = 4%
Total	50	100%

In this fashion it can be seen, that 36 percent of the days sampled, between 70 and 79 passengers embarked on a journey using P&P Airlines or 60 percent of the time, P&P served between 70 and 89 travelers.

< Предыдущая		Следующая >