Question

class 10 math statistics median​

Answer 1

Step-by-step explanation:

Median is a measure of central tendency which gives the value of the middle-most observation in the data. In case of ungrouped data, we first arrange the data values of the observations in ascending order. Then, if n is odd, the median is the (n+1)/2 th observation.

Answer 2

Answer:

$ǤѲѲD \: ΔᚫΓΞɌŊѲѲŊ$

Median of Grouped Data

 Median is a measure of central tendency which gives the value of the middle-most observation in the data. In case of ungrouped data, we first arrange the data values of the observations in ascending order. Then, if n is odd, the median is the (n+1)/2 th observation. But in case of Grouped data, it is difficult to find (n+1)/2 th observation. We use formula to find Median.

We first find cumulative frequency & then locate the class whose cumulative frequency is greater than (and nearest to) n/2 , where n is total observations. This is called the median class

$mdian = l + (\frac{ \frac{n}{2} - cf }{f} ) \times h$