`{:("Class Interval",0.10,10-20,20-30,30-40,40-50),("Frequency",5,0,20,5,10):}`
What is the median of the above frequency distribution?

{:("Class Interval",0.10,10-20,20-30,30-40,40-50),("Frequency",5,0,20,5,10):} What is the mean of the above frequency distribution?

Consider the following frequency destribution : {:("Class interval",0-10,10-20,20-30,30-40,40-50),("Frequency",14,x,27,y,15):} If the total of the frequencies is 100 and mode is 25, then which one of the following is correct?

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):}

Estimate the mode of the following data from the histogram. {:("Class Interval",0-10,10-20,20-30,30-40,40-50,50-60,60-70,70-80),("Frequency",8,10,15,16,20,13,14,12):}

Draw histograms for the following frequency distributions : {:("Class interval ", 0-10, 10-20, 20-30, 30-40, 40-50, 50-60),("Frequency "," "12, " " 20, " " 26, " " 18, " " 10, " " 6):}

Caculate median of the following distribution of data : {:("Class Interval",1-10,11-20,21-30,31-40,41-50),("Frequency"," "4," "12," "20," "9," "5):}

If the variance of the following frequency distribution , {:("Class",":","10-20","20-30","30-40"),("Frequency",":",2,x,2):} is 50, then x is equal to _____.

Find the median of the following data: {:("Class Interval",0-10,10-20,20-30,30-40,40-50),(f,6,8,5,4,7):}

The mode from given grouped data would be {:("Class Interval",10-20,20-30,30-40,40-50,50-60),("Frequency",5,7,6,8,4):}

For the given distribution, draw the less than and greater than cumulative frequency curves. {:("Class Interval",0-10,10-20,20-30,30-40,40-50,50-60,60-70,70-80),("Frequency",5,3,7,2,14,9,15,10):}