JEE Main 202116 Mar, Morning shiftMathematicsEasyStatistics and Probability258× since 2002
Consider three observations a, b, and c such that b = a + c. If the standard deviation of a + 2, b + 2, c + 2 is d, then which of the following is true?
JEE Main 2021 · 16 Mar, Morning shift · Q5461