निम्न बारम्बारता बंटन का समान्तर मध्य ज्ञात कीजिए |
`{:(" वास्तु का आकार :",10-20,20-30,30-40,40-50),(" बारम्बारता :", " "6," "12," "26," "20):}`

Find the mean for the following data : {:("C.I",0-10,10-20,20-30,30-40,40-50,),("f"," 3"," 5"," 3"," 9"," 5",):}

Find out median marks from the following data : {:("Marks",0-10,10-20,20-30,30-40,40-50),("Number of Students"," "8," "30," "40," "12," "10):}

Calculate mode from the following data : {:("Class Interval",0-10,10-20,20-30,30-40,40-50),("Frequency"," "2," "5," "7," "5," "2):}

In the following frequency distribution, the median class is . . . . . {:("Class ",10-20,20-30,30-40,40-50,50-60),("Frequency "," "12," "18," "25," "15," "10):}

The following table shows marks obtained by the students of a class in their test in English: {:("Marks",0-10,10-20,20-30,30-40,40-50),("Number of Students"," "20," "24," "40," "36," "20):} Calculate arithmetic mean using Step-deviation method.

The following table shows marks secured by the students of a class in an examination in English: {:("Marks",0-10,10-20,20-30,30-40,40-50),("Number of Students"," "20," "24," "40," "36," "20):} Calculte mean marks using Short-cut Method.

Find out median , with the help of the following data : {:("Price Level",10-20,20-30,30-40,40-50,50-60,60-70),("Number of Commodity"," "2," "5," "8," "4," "6," "3):}