JEE Main 2016 (Online) 9th April Morning Slot | Statistics Question 107 | Mathematics

The mean of the data set comprising of 16 observations is 16. If one of the observation valued 16 is deleted and three new observations valued 3, 4 and 5 are added to the data, then the mean of the resultant data, is :

15.8

14.0

16.8

16.0

JEE Main 2014 (Offline)

MCQ (Single Correct Answer)

-1

The variance of first 50 even natural numbers is

833

437

$${{437} \over 4}$$

$${{833} \over 4}$$

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