Math, asked by lennyej1031, 1 year ago

The mean of 9 observations is 5, each is added by (-3). The mean of 9 observations is 5 ,each observation is added by (-3) .What is the new mean ?how?

Answers

Answered by ArchitectSethRollins
0
Hi friend
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Your answer
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Mean of 9 observations = 5

Sum of the observations = (9 × 5) = 45

Each observation is added by (- 3).

Then,
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New mean = [ 45 - { 9 × (- 3)} ]/9

= (45 - 27)/9

= 18/9

= 2

HOPE IT HELPS
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