CBSE Class 11-science Answered
EXCERSICE 15.3 second question(NCERT)
Asked by emraldboy | 26 Jan, 2010, 01:27: PM
Expert Answer
Dear Student
First find teh standerd deviation of 2 given datas
σ=
(sum x2 /N)
For X data σ = (350x /10) =5.916
Average X= sumX/N= 51
dor ydata σ = (40x /10) =2
Average X= sumX/N=105
Chack the coefficiant of variation for both data
CV= σ100/Average
X Cv = 5.916X 100/51 =11.16
Y CV= 2X100/105= 1.905
So Y is more stable
Regards
Team
Topperlearning
Answered by | 26 Jan, 2010, 07:27: PM
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