The mean of 20 numbers is 43 If 6 is subtracted from ea

The mean of 20 numbers is 43. If 6 is subtracted from each of the numbers, what will be the new mean?

Please scroll down to see the correct answer and solution guide.

Right Answer is:

SOLUTION

Mean =(x1+x2------x20)/20

43={x1+x2-----x20}/20

43*20=860={x1+x2----x20)

If 6 is subtracted from 20 observations, it means that (20*6)is subtract from whole all observations

Mean ={(x1+x2-----x20)-120}/20

Mean =(860-120)/20

New mean =740/20

New mean =37

The mean of 20 numbers is 43 If 6 is subtracted from ea

Right Answer is:

SOLUTION

Related QuestionsFactorise x2+√2x−24 x2+√2x−24=x2+4√2x−3√2x−24=xx+4√2−3The mean of 15 numbers is 27 If each number is multipliAn equilateral triangle of side 9 cm is inscribed in aThe mean of 12 numbers is 401f each number is divided b

Related Questions
Factorise x2+√2x−24 x2+√2x−24=x2+4√2x−3√2x−24=xx+4√2−3
The mean of 15 numbers is 27 If each number is multipli
An equilateral triangle of side 9 cm is inscribed in a
The mean of 12 numbers is 401f each number is divided b