Math, asked by deepakchaudhry7500, 10 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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