Cv.docx

Q. Goals scored by two teams A and B in a football season were as follows: Number of goals scored in a Number of matches match Team A Team B 0 27 17 1 9 9 2 8 6 3 5 5 4 4 3 Required: Which team may be considered more consistent?

Solution:

Team A Number of goals scored in a match

Number of matches

xi

f

0 1 2 3 4

27 9 8 5 4

x2 i

fxi

f x2i

Team B Number of goals scored in a match

Number of matches

xi

f

0 1 2 3 4

17 9 6 5 3

x2 i

fxi

f x2i

Ans: cov of team B (109.17%) is less than the cov of team A (123.58%), therefore, Team B is considered more consistent.

Q: Price of a particular commodity in five years in two cities are given below: Price in city A 20 22 19 23 16 Price in city B 10 20 18 21 15 From the above data find the city which had more stable price Ans: C.V City A 12.25%, C.V. City B 24.6 % Therefore city A had more stable price than in city B