Answer the icse board question(2018)."DO NOT SEND ANY LINKS". CHAPTER :?STATISTICS. (b) Use Graph paper for this. question. A survey regarding height (in cm) of 60 boys belonging to Class 10 of a school was conducted. The following data was recorded: Height 135 -140 140 -145 145—150 150—155 155 — 160 160 — 165 165 — 170 No. of boys 4 8 20 14 7 6 1 Taking 2 cm = height of 10 cm along one axis and 2 cm = 10 boys along the other axis draw an ogive of the above distribution. Use the graph to estimate the following: (i) the median (ii) lower Quartile (iii) if above 158 cm is considered as the tall boys of the class. Find the number of boys in the class who are tall.