The frequency distribution f of socioeconomic status X for a

The frequency distribution (f) of socioeconomic status (X) for a group of 20 undergraduate

students from a statistics course is shown in Table 1. Please supply the missing values (represented by question marks) in this table.

x f Relative f

Low ? ?

Medium ? 0.6

High 8 ?

f ? ?

Solution

medium = 0.6 * 20 = 12

low = 20 - 8 - 12 = 0

low ---- 0 ------- 0

medium 12 0.6

high 8 0.4

sum 20 1