Math, asked by deepakchaudhry7500, 9 months ago

The mean of 30 observations was 150 it was detected on checking that one observation 165 was wrongly copied as 135

Answers

Answered by gnjn

2

Answer:

new mean will be 151

Step-by-step explanation:

×/30=150

x=4500

165-135=30

4500+30=4530

4530÷30=151

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