A survey plotted ‘less than’ ogives for monthly family income in two towns, P and Q. The curves show the following points:
• Town P: 40 % of families earn below Rs 12,000 and 60 % earn below Rs 18,000.
• Town Q: 40 % of families earn below Rs 10,000 and 60 % earn below Rs 20,000.
Which comparison is correct?
(a) Town P has a higher median and lower variability than Town Q
(b) Town Q has a higher median and lower variability than Town P
(c) Both towns have the same median, but Town Q shows greater variability
(d) Both towns have the same median and the same variability