Question

In mathematics test given to 10 students the following marks (out of 100) are
recorded: -
11, 99, 40, 37, 90, 40, 95 , 55, 40, 65 find the mean, median and mode of this
data​

Answer 1

mean= sum of observation / total no. of observation

= 11+99+40 +37+90+40+95+55+40+65/10

=57.2

Mode= 40(highest repeating no..)

Median = first arrange them in ascending order

11,37,40,40,40,55,65,90,95,99

n=10

avh.of middle term

so median = 40+55/2=95/2=47.5