What is quartile deviation for the datsa `{:(,x,2,3,4,5,6),(,f,3,4,8,4,1):}`

Find the mean deviation about the median for the following data. {:(x,1,2,3,4,5,6),(f,3,7,5,8,2,5):}

Find the quartile deviation of the following data: {:(x,f," "x,f),(2,4," "13,2),(3,6," "17,4),(5,8," "19,6),(7,9," "23,6),(11,10," ",):}

Find the quartile deviation of the following discrete series. {:(x,3,5,6,8,10,12),(f,7,2,3,4,5,6):}

Find the quartile deviation of the following discrete series. {:(x,7,5,4,8,12,10),(f,2,4,6,10,9,7):}

The standard deviation of the following frequency distribution is {:(X,2,3,4,5,6,7),(f,4,9,16,14,11,6):}

Find The standard deviation of the following frequency distribution is {:(X,2,3,4,5,6,7),(f,4,9,16,14,11,6):}

The standard deviation of the following frequency distribution is {:(X,2,3,4,5,6,7),(f,4,9,16,14,11,6):}

Find The standard deviation of the following frequency distribution is {:(X,2,3,4,5,6,7),(f,4,9,16,14,11,6):}

Find the quartile deviation of the following discrete series. {:(x,8,10,13,16,19,22),(f,4,7,8,3,5,4):}