Anyone plzz solve this Q.39. Two brands Of tyres are tested with the following results:
Life ('000 miles)
Brand X
Brand Y
20-25
8
6
25-30
15
20
30_35
12
32
35—40
18
30
40—45
13
12
9
Which brand has a greater variation?
[C.v. (X) = 21.82%; C.V. (Y) = 16.101%,
Brand X has greater variations]
