Question

The following mark were secured by 5 student in an examination 125 ,95, 102,128and140. find the median of the marks a.128 b.95c.140 d.125

Answer 1

$\boxed {\mathfrak{Hello !!}}$

Given Marks secured by students :-

125

95

102

128

140

number of observations (n) = 5

i.e → n is odd

so median for odd =

$\frac{n + 1}{2}$

substituting " n " value

median =

$\frac{5 + 1}{2} \\ \\ \frac{6}{2} = 3$

So, 3rd observation is median

Arranging the observations in a order :-

95 , 102 , 125 ,128 ,140

3rd observation is 125

so median is 125

$\boxed {\mathfrak{Hope \: it \: helps \: u!}}$