plz answer this question it's important. .i will surely mark brainliest for correct answer...
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mean of 10no= 20
sum of 10 no/ total no=20
sum of 10 no =20×10
sum of 10 no =200
if we subtract 5 from each
then
new sum of 10 no =200 - 5×10
=150
mean of new 10 no =150/10= 15
sum of 10 no/ total no=20
sum of 10 no =20×10
sum of 10 no =200
if we subtract 5 from each
then
new sum of 10 no =200 - 5×10
=150
mean of new 10 no =150/10= 15
Answered by
2
mean = sum of all observation / no. of observation
20= x/ 10
sum of all observation is = 200
10 no are given and 5 is sub. from all no. is
200 -10× 5
150
so new mean is 15
20= x/ 10
sum of all observation is = 200
10 no are given and 5 is sub. from all no. is
200 -10× 5
150
so new mean is 15
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