Q.

Two teams A and B have the same mean and their coefficients of variation are 4,2 respectively. If σA,σB are the standard deviations of teams A, B respectively then the relation between them is

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

σB=2σA

b

σA=σB

c

σA=2σB

d

σB=4σA

answer is C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Given  xA=xB

C.VA=σAxA×100=4C.VB=σBxB×100=2σAσB=42σA=2  σB

Watch 3-min video & get full concept clarity

hear from our champions

score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon