JEE Main 20202 Sep, Evening shiftMathematicsMediumStatistics and Probability258× since 2002
If the variance of the terms in an increasing A.P.,
b₁
, b₂
, b₃
,....,b₁₁ is 90, then the common
difference of this A.P. is_______.
JEE Main 2020 · 2 Sep, Evening shift · Q37