[" 17.The frequency distribution of marks obtained by "28" stu- "],[" dents in a test carrying "40" marks is given below: "],[[" Marks: ",0-10,10-20,20-30,30-40],[" Number of students: ",6,x,y,6]]

The frequency distribution of marks obtained by 28 students in a test carrying 40 marks is given below: {:("Marks":,0-10,10-20,20-30,30-40),("Number of students":,6,x,y,6):} If the mean of the above data is 20, then the difference between x and y is

The frequency distribution of marks obtained by 28 students in a test carrying 40 marks is given below: {:("Marks":,0-10,10-20,20-30,30-40),("Number of students":,6,x,y,6):} If the mean of the above data is 20, then the difference between x and y is

The frequency distribution of the marks obtained by 100 students in a test carrying 50 marks is given below. Then the mean is {:("Marks ",0-9,10-19,20-29,30-39,40-49),("No. of students "," "8," "15," "20," "45," "12):}

The frequency distribution of the marks obtained by 28 students in a test carrying 40 marks is given below : If the mean of the above data is 20 , then find the difference between x and y .

If for some x in R , the frequency distribution of the marks obtained by 20 students in a test is: Then the mean of the marks is:

If for some x in R , the frequency distribution of the marks obtained by 20 students in a test is: Then the mean of the marks is:

Distribution of marks obtained by 100 student of a class is given below . Find out the median marks {:("Marks",0,5,10,15,20,25,30,35,40,45),("Number of Students",4,6,15,5,8,12,28,14,3,5):}

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):}