Multiple choice

Consider the following groups A and B A : 3, 4, 5,...... upto n terms B : 15, 19, 23,..... upto n terms If the mean deviations of groups A and B about their means are $\displaystyle \alpha : : : and: : : \beta $ respectively then

  1. $\displaystyle \beta=5\alpha $
  2. $\displaystyle \beta=4\alpha+3 $
  3. $\displaystyle \beta=4\alpha$

  4. None
Reveal answer Fill a bubble to check yourself
B Correct answer

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