28.
Find the mean, median and mode of the following data
15, 17, 16, 14, 17, 16, 11, 15, 17, 14
.40
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Answer:
Mean
we can arrange the given data in ascending order
11,14,15,15,16,16,17,17,17,40.
no. of observation = 10 ( even)
mean= x bar = sum of observation / total number of observation
= 11+14+15+15+16+16+17+17+17+40 /10
= 178/10
= 17.8
=mean = 17.8
median
arrange in ascending order
11,14,15,15,16,16,17,17,17,40.
no. of observation =10(even)
median =m = (n/2)th observation + (n +1 /2) th observation /2
= 10/2 observation + 10+1/2 observation /2
5/2+6/2 /2
16+16/2
32/2
median = 16
Mode denoted to Z mode is 17 because 17 is repeat 3 time
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