Mathematics - Statistics Question with Solution | TestHub

MathematicsStatisticsMeanEasy2 minPYQ_2013

MathematicsEasysingle choice

The mean of a data set consisting of 20 observations is 40 . If one observation 53 was wrongly recorded as 33 , then the correct mean will be:

Answer:

Solution:

$Correct mean = \frac{20 \times 40 - 33 + 55}{20} = 41.1$ Nearest option : (a) 41

Stream:JEESubject:MathematicsTopic:StatisticsSubtopic:Mean

⏱ 2mℹ️ Source: PYQ_2013

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