Question

The mean of 20 observations was found to be 65 but later on it was found that 69 was misread as 96 . find the correct mean​

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Answer:

hey your answer

Step-by-step explanation:

mean: 65

sum: 20 X 65: 1300

wrong observations : 96

correct observations : 69

20 numbers :

1300-96+69 = 1273

correct mean : 1273/20=63.65