Math, asked by sreenasarkar, 10 months ago

If the mean of 25 observations is 27 and each observation is decreased by 7 then what will be the new mean?
PLEASE HELP!!!

Answers

Answered by nivabora539

2

please mark me as brainlist.

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Answered by anjubairwarud

1

Answer:

25*27= total value of observation

Step-by-step explanation:

(25*27 -25*7)/25= 20

mean - change = new mean

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