the range will be the difference of ur whiskers....lol...that sounds funny...the highest number minus the lowest number....39 - 18 = 21
the interquartile range (IQR) will be the difference of Q3 and Q1.....Q3 is the end of the box and Q1 is the beginning of the box....so ur IQR is gonna be 35 - 21 = 14
