A survey regarding the heights (in cm) of 51 girls of Class X of a school was conducted and the following data was obtained:

Find the median height.

Explanation

`N=51⇒ N/2 = 51/2
​=25.5`

As 29 is greater than 25.5, the median class is `145-150.`


Median=`l+ [(N/2+C)/f times H]`
Here, l= lower limit of median class =145
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