pls solve asap
pls solve asap 47. A data set consists of 99 numerical observations. One more observation is added to bring the total to 100 observations. Which Of the following statistics of the data set CANNOT decrease when the 100th obsenration is added? (A) Mean Median (B) (C) Mimmum (D) Range (E) Standard deviation

As sample size increase then standard deviation decrease. So option E is not correct
We can't define the 100th term to be max. or min. Hence option C,D are not correct.
Mean would decrease or increase depends on the value added. Hence option A is wrong
Finally Median would never decrease when observation is added. Hence Ans: B
 
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