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Quartiles and the interquartile rangeHSS.ID.A.2Find the interquartile range: 21, 26, 2, 39, 55, 45, 9, 13, 24, 36, 49, 35Find the quartiles and interquartile range of a data set, and the upper fence used to spot outliers.Lines of best fitHSS.ID.B.6Use the line of best fit to predict y when x = 12.Write the equation of a line of best fit drawn on a scatter plot, then use it to predict y from x or x from y.