Statistics and ProbabilityStandard Deviation (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SBSX (Class 12 & 1st Year B.Sc.) Math): Questions 1  2 of 2
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Question number: 1
» Statistics and Probability » Standard Deviation
Appeared in Year: 2014
Question
Let . A list of number has mean and standard deviation . A new list of numbers is made as follows: and for . The mean and the standard deviation of the list are and . Then which of the following is necessarily true?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 2
» Statistics and Probability » Standard Deviation
Appeared in Year: 2013
Question
Let . A list of numbers has mean and standard deviation . A new list of numbers is made as follows: . The mean and the standard deviation of the new list are . Which of the following is necessarily true? (Model Paper)
Choices
Choice (4)  Response  

a.  many or may not be equal to 

b. 


c. 


d. 

