If the variance of the terms in an increasing A.P., b_1, b_2, b_3,....b_ 11 is 90, then the common difference...

Question

If the variance of the terms in an increasing A.P., b_1, b_2, b_3,....b_ 11 is 90, then the common difference of this A.P. is_______.

Accepted Answer

3

JEE Main 2020 Mathematics question