Math, asked by ashumadaan1983, 1 year ago

the mean of 80 observation was 250 . it was detected that the value of two items was wrongly taken as 60 and 40 instead of 16 and 14 for calculating mean . find the correct mean.
plz help

Answers

Answered by ketubh

1

Answer:

249.125

Explanation:

80×250=20000

20000-70

19330÷80=

249.125

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