Question

155,
10. 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

Answer:

Step-by-step explanation:

mean= sum of observations/no. of observations

mean=(11+20+10+19+18+16+18+14+18)/9

mean=16

median of odd no. is n+1/2 th term after arranging it in ascending order,

10,11,14,16,18,19,20 where n=7

hence, 4th term that is 16 is the median

mode is the most repeated number that is 18.