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

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 mode of the following discrete series is: {:(x_(i), 1,3,5,6,12,15),(f_(i)"",5,7,3,8,6,5):}

The mode of the following discrete series is: {:(x_(i), 1,3,5,6,12,15),(f_(i)"",5,7,3,8,6,5):}

The Median of the following discrete series is {:(x_(i),3,6,5,8,12,7),(f_(i)"",5,2,4,6,7,6):}

The Median of the following discrete series is {:(x_(i),3,6,5,8,12,7),(f_(i)"",5,2,4,6,7,6):}

Find the mode of the following discrete series. {:(x,1,2,3,4,5,6,7,8,9),(f,3,8,15,1,9,12,14,5,7):}

Find the mode of the following discrete series. {:(x,1,2,3,4,5,6,7,8,9),(f,3,8,15,1,9,12,14,5,7):}

Find the mode of the following discrete series. {:(x,f," "x,f),(1,5," "6,8),(3,7," "12,6),(5,3," "15,5):}

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," ",):}