Question

the coefficient of variation of two series are 24% and 40% and their respective standard deviation are 6 and 8 find the respective means.

Answer 1

Answer:

mskelekekkekrkejejejjejejejjrjh5g5v5vrhjeiekeksjjs

Answer 2

Answer:

Given: C.V

1

=60,C.V

2

=75,S.D

1

=18,S.D

2

=15

C.V

1

=

u

1

S.D

1

×100

∴u

1

=

C.V

1

S.D

1

×100

=30

C.V

2

=

u

2

S.D

2

×100

∴u

2

=

C.V

2

S.D

2

×100

=20

So, the average of their arithmetic means will be:

u=

2

u

1

+u

2

=25

Ans-Option B.