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Previous Year Question (PYQs)



Consider the following frequency distribution table.
 Class Interval 10-20 20-30 30-40 40-5050-60  60-7070-80 
 Frequency 180$f_1$ 34 180 136 $f_2$50 
If the total frequency is 686 and the median is 42.6, then the value of $f_1$;and $f_2$ are 





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