बारम्बारता बंटन का समान्तर मध्य ज्ञात कीजिए
`{:(" वर्ग अन्तराल : ",0-10,10-20,20-30,30-40,40-50),(" बारम्बारता :", " "9," "12," "15," "10," "14):}`

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):}

Find the missing frequency of the group 20-30 when the median is 24. {:("Size",0-10,10-20,20-30,30-40,40-50),("Frequency"," "5," "25," "-," "18," " 7):}

Locate the median graphically from the following data : {:("Marks",0-10,10-20,20-30,30-40,40-50),("Number of Students"," "10," " 20," " 30," " 20," " 10):}

Find the missing frequency of the group 20-30 when the median is 28. {:("Class Interval",0-10,10-20,20-30,30-40,40-50),("Frequency"," "5," "8," "?," "16," "6):}

Compute the missing frequencies in the following distribution , given that is sum f_(i) = 100 and the median is 32 {:("Marks",0-10,10-20,20-30,30-40,40-50,50-60),("Number of students "," "9," "?, " "26, " "30, " " ?, " "10):}

Find the missing frequency in the following distribution if N=100 and M=30. {:("Marks",0-10,10-20,20-30,30-40,40-50,50-60),("Number of Students"," "10," "?," "25," "30," "?," "10):}