Question

in the mathematics test given to 15 students the following matks out of 100 are recorded :- 41 ,39,48,52,46,62,54,40,96,52,98,40,42,52,60 .
find the mean median and mode of the marks.

Answer 1

Observations: 41,39,48,52,46,62,54,40,96,52,98,40,42,52,60

No. Of observations = n = 15

Mean = Sum of observations/n

= 41+39+48+52+46+62+54+40+96+52+98+40+42+52+60/15

Mean = 822/15

Mean = 54.8

Ascending order of onservations= 39,40,4041,42,46,48,52,52,52,54,96,98

Median =

$( \frac{n}{2})th \: term$

Median = ( 15/2) th term

Median = 7.5th term

Median = 8th term

Median = 52

Mode = maximum frequency

Since the frequency of 52 is 3 and maximum

Mode = 52