the side - by - side stemplot below displays the arm spans, in centimeters, for two classes. which statement…

the side - by - side stemplot below displays the arm spans, in centimeters, for two classes. which statement correctly describes the proportion of arm spans that are longer than 170 cm? class a arm span (cm) class b 8 14 3 1 15 3 9 6 5 15 5 6 4 2 1 16 0 2 2 2 3 3 9 9 5 16 5 6 7 1 0 17 0 3 9 9 6 5 17 3 2 0 18 0 1 2 6 6 18 9 0 19 2 19 20 2 key: 15|5 = 155 cm

Answer