Total number of workers 160
Number of white workers 80
Number of Asian workers 20
Number of other workers 20
Number of black workers 40
Total number of workers except black 120
90
Proportion of black workers 25 80
70
60
50
No. of workers
40
30
20
10
0
Number of white Number of Asian N
workers workers
,white Number of Asian Number of other Number of black
s workers workers workers
, Sample Samples in ascending order
121 100
173 121 Median
157 142 163
165 145
170 157
161 161
142 165
171 170
184 171
100 173
145 184
196 196
Number of white workers 80
Number of Asian workers 20
Number of other workers 20
Number of black workers 40
Total number of workers except black 120
90
Proportion of black workers 25 80
70
60
50
No. of workers
40
30
20
10
0
Number of white Number of Asian N
workers workers
,white Number of Asian Number of other Number of black
s workers workers workers
, Sample Samples in ascending order
121 100
173 121 Median
157 142 163
165 145
170 157
161 161
142 165
171 170
184 171
100 173
145 184
196 196
