Question

The scores of an aptitude test (out of 25) of
9 students is as follows :
11, 20, 10, 19, 18, 16, 18, 14, 18. Find the mean, median and mode of
this data.​

Answer 1

Step-by-step explanation:

mean = sum of observation/number of observations

144/9

=16

median is 5th observation

10,11,14,16,18,18,18,19,20

5th observation=18

mode is most frequent observation=18

Answer 2

Step-by-step explanation:

Mode = 18 ( as 18 has been repeated the most times)

Mean = sum of all numbers/number of total given numbers

= 144/9

=16 mean

median = ascending order of the given no = 10,11,14,16,18,18,18,19,20

so , N = 9

so ,9+1/2= 5

= 18+18/2

= 36/2

18 ans

so, median = 18