Question

The red line indicates the girl's height distribution. The blue line indicates the boy's height distribution.

i) Find the maximum number of girls belong to which height group.

ii) Find the difference between the number of boys to the number of girls.

Answer 1

i) According to the graph, there are 7 girls in the height group 160-170 which is the highest.

ii) Total number of boys=4 + 3 + 2 + 4 + 3 = 16

Total number of girls = 1 + 7 + 6 + 2 = 16

The difference between number of boys to number of girls = 16-16 = 0.