Question

the mean of a set of numbers is x .if each number is multiplied by k . then find the mean of the new set

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Answer 1

Answer:

The mean of new set is kx

Step-by-step explanation:

Let the numbers be a1,a2,a3......an

then mean will be,

Mean= $\frac{a1+a2+a3+.....+an}{n}$ =x

If each number is multiplied by k,

then new numbers will be

ka1,ka2,ka3.........kan

New mean=$\frac{ka1+ka2+ka3+......+kan}{n}$

                = $\frac{k(a1+a2+a3+....+an)}{n}$

                =kx

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Answer 2

Answer:

The mean of new set of numbers is kx