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Grade 12Algebra

Please explain with proper steps.
If the variance of the first n natural numbers is 10 and the variance of the first m even natural numbers is 16, then m+n is equal to _____.

Rosh Annie

5 Years agoGrade 12

2 Answers

Ram Kushwah

5 Years ago

Dear student ,

The variant of natural numbers from 1 to n is given by

(1²+2²+3²+...................+n²)/n - (1+2+3+...........+n)²

In the given equation we have fount n=11 and m=7

Thus m+n=11+7=18

Thanks

Ram Kushwah

5 Years ago

Please delete my first answer

Dear student ,

The variant of natural numbers from 1 to n is given by

(1²+2²+3²+...................+n²)/n - (1+2+3+...........+n)²

In the solution of the given question we have found n=11 and m=7

Thus m+n=11+7=18

Thanks

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