The mean of 20 observations was found that 69 was misread as 96.Find the correct mean.
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Answer:
Correct sum of 20 numbers =
Incorrect sum - incorrect observation + correct observation
= 1300 - 96 + 69
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
Step-by-step explanation:
Hope it helps you
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