Question

in a class of 32 students the mean height of the 14 boys is 1.56 metres
the mean height for the 32 students is 1.515metres
work out the mean height of the girls?

Answer 1

Answer:

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Answer 2

Answer:

1.56 subtract from 1.515. the ans is -0.045 if you want to check the answer add -0.045 + 1.56 so the mean height of girls is -0.045