Find the AM of the following data by short-cut method.
`{:("Class Interval",f),(" "1-5,5),(" "6-10,10),(" "11-15,15),(" "16-20,10),(" "21-25,5):}`

The mode of the following distribution is {("Class interval",f),(" "1-5,4),(" "6-10,7),(" "11-15,10),(" "16-20,8),(" "21-25,6):}

Draw the frequency polygon for the following data by drawing a histogram: {:("Class Interval",f),(" "0-5,10),(" "5-10,20),(" "10-15,15),(" "15-20,30),(" "20-25,32),(" "25-30,44):}

Draw a histogram for the following data: {:("Class Interval",f),(" "0-5,2),(" "5-10,10),(" "10-15,8),(" "15-20,6),(" "20-25,4):}

Find the mean deviation (approximately) about the mean for the following. {:("Class interval",f),(" "0-5,3),(" "5-0,4),(" "10-15,8),(" "15-20,10),(" "20-25,5):}

The mean of the following data is {("Class interval",f),(" "10-15,5),(" "15-20,7),(" "20-25,3),(" "25-30,4),(" "30-35,8):}

Draw the frequency curve for the following data. {:("Class Interval",f),(" "2-5,12),(" "5-8,8),(" "8-11,8),(" "11-14,6),(" "14-17,10),(" "17-20,9):}

Find the approximate value of mean deviation about the mode of the following data. {:("Class Interval",f),(" "0-10,4),(" "10-20,6),(" "20-30,3),(" "30-40,9),(" "40-50,5):}

If the mean of the following data is 26, then find the missing frequency x. {:("Class Interval",f),(" "0-10,4),(" "10-20,X),(" "20-30,9),(" "30-40,5),(" "40-50,6):}

Calculate arithmetic mean from the following data by Short-cut Method: {:("Class Interval",20-25,25-30,30-35,35-40,40-45,45-50,50-55),("Frequency"," "10," "12," "8," "20," "11," "4," "5):}