mean of 25 observations is 46, one observation is misread 42 as 24. find the correct mean of the observations
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Mean=su.of observations/no of observations
here no of obs are 20 and mean is 54 so sumof observations=54×20=1080
42 is misread as 24
so correct mean =sum of obs-wrongobs+correctobs/no of obs
so 1080-24+42/20=54.9
Read more on Brainly.in - https://brainly.in/question/6124612#readmore
here no of obs are 20 and mean is 54 so sumof observations=54×20=1080
42 is misread as 24
so correct mean =sum of obs-wrongobs+correctobs/no of obs
so 1080-24+42/20=54.9
Read more on Brainly.in - https://brainly.in/question/6124612#readmore
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