1.

Given the following frequency distribution with some missing frequencies {:(Class , "Frequency") , (10-20 ,, 180), (20-30 ,, --), (30-40 ,, 34) , (40-50 ,, 180) , (50-60 ,, 136) , (60-70 ,, --) , (70-80 ,, 50):} If the total frequency is 685 and median is 42.6 then the missing frequencies are

Answer»

` 81, 24`
` 80 , 25`
` 82, 23`
` 832, 22`

Answer :C


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