निम्नलिखित सारणी का समान्तर माध्य ज्ञात कीजिए :{:(वर्ग, 0-10, 10-20, 20-30, 30-40, 40-50),( आवृत...

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 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 the mean devation from the mean the following data: {:(,"Marks",0-10,10-20,20-30,30-40,40-50),(,"No. of stu.",5,8,15,16,6):}

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.

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 gives the marks scored by 100 students in an entrance examination. Marks:, 0-10, 10-20, 20-30, 30-40, 40-50, 50-60, 60-70, 70-80 No. of Students (Frequency):, 4, 10, 16, 22, 20, 18, 8, 2

Calculate the values of Q_(1),Q_(3),D_(8)and P_(85) - from the following data : {:("Wages (Rs.)",0-10,10-20,20-30,30-40,40-50),("Number of Workers"," "22," "38," "46," "35," "19):}

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):}