# The calculated me

We know that Sum of observations = Mean ×Total number of observations

Given mean of 50 observations = 80

Sum of 50 observations=80×50

Sum of 50 observations =4000

For correct mean, we will subtract 91 and add 19 to the sum. Rate this question :

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Related Videos  Mode44 mins  Frequency Distribution Table58 mins  Graphs42 mins  Median58 mins  Mean61 mins
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