Question

The height of boys and girls of 9 class of a school are given below heights(c.m):735,140,147,152,155,160 boys:2,5,12,10,7,1 girls:1,2,10,5,6,5 find the median heights of the given boys data
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Answer 1

Answer:

I am so sorry guy i forget the formula without that we cannot put the sum

Answer 2

Answer:

Total number of Boys=2+5+12+10+7+1

Sum of heights of all boys

=135×2+140×5+147×12+152×10+155×7+160×1=5499

Average height of boys=5499÷37=148.62cm

Total number of Girls=1+2+10+5+6+5=29

Sum of heights of all girls

=135×1+140×2+147×10+152×5+155×6+160×5=4375

Average height of Girls=4375÷29=150.86cm

Hence

The Average height of Girls is 2cm greater than height of Boys.

Hope It Helps You