# The heights of boys and girls of IX class of a school are given below.Compare the heights of the boys and girls[Hint : Find median heights of boys and girls]

We have

We shall find median of the heights of the boys and girls separately.

Median of heights of boys:

Nxi = 37

Cumulative frequency = 19 falls in the height of 147 cm.

Thus, median height of boys is 147 cm.

Now, median of heights of girls:

Nyi = 29

Cumulative frequency = 15 falls in the height of 18.

Cumulative frequency, 18 falls in the height of 152 cm.

Median height of boys is 147 cm whereas median height of girls in the class is 152 cm.

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