Mean of 36 observation is 12 one observation 36 was misread as 62 find the correct mean
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mean = sum of observation / no. of observation.
mean of 36 observation = 12
sum of 36 observation =12 x 36
= 432.
when computing mean 36 was misread of 62.
∴ correct sum of 36 observation = 432 - 36 + 62
= 458.
actual mean of 36 observation = 458 / 36
=93 .7
Anonymous:
if it is correct
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