Math Chapter Wise Statistics And Probability English MCQ RPSC PGT 2022 Q.The formula to calculate the coefficient of quartile deviation is - AQ Q 3 1 2 + BQ Q 3 1 2 − CQ Q 3 4 Q Q 3 1 − + DQ Q 3 1 Q Q 3 1 − + Show answer Correct answer: Q Q 3 1 2 −