Q10. A set of 2n observations consists of n values equal to 'a' and n values equal to '-a'. If the standard deviation of the set is 2, what is the value of |a|?Mathematics — NUST Mock By IBAGRADS 5 — Question 10 of 200A. 1/nB. √2C. 2D. √2/nPractice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →