class 11 Math Algebra Statistics

Average height & variance of $5$ students in a class is $150$ and $18$ respectively. A new student whose height is $156cm$ is added to the group. Find new variance. (a) $20$ (b) $22$ (c) $16$ (d) $14$

Similar topics

determinants

matrices

binomial theorem

complex numbers and quadratic equations

sequences and series

determinants

matrices

binomial theorem

complex numbers and quadratic equations

sequences and series

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