find mean for the following data 25, 34, 31, 23, 22, 26, 35, 28, 20, 32
Answers
Answered by
0
Step-by-step explanation:
25,34,31,23,22,26,35,29,20,32
No' of observations (n) =10
first of all we arrange the observations in an ascending order
20,22,23,25,26,29,31,32,34,35
Here observe that No' of observations (n) is even so
Median is average of
2
n
th term and (
2
n
+1) th term
Median =
2
2
n
th term+(
2
n
+1)th term
=
2
2
10
th term+(
2
10
+1)th term
=
2
5th term+6th term
=
2
26+29
=
2
55
Median = 27.5
Answered by
0
Answer:
Step-by-step explanation:
Arrange them in Acending order:
20,22,23,25,26,28,31,32,34,35
Mean=sum of observation / no.of obsertion
20+22+23+25+26+28+31+32+34+35/10
244/10=24.4
Mean=24.4
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