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GATE Computer Science (CS) 2011 Solved Paper
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© examsnet.com
Question : 43
Total: 65
Consider a finite sequence of random values X = [x
1
, x
2
, .... x
n
]. Let μ
x
, be the mean and σ
x
, be the standard deviation of X. Let another finite sequence Y of equal length be derived from this as y
i
= a* x
i
+ b, where a and b are positive constants. Let μ
y
, be the mean and σ
y
be the standard deviation of this sequence. Which one of the following statements is
INCORRECT
?
Index position of mode of X in X is the same as the index position of mode of Y in Y.
Index position of median of X in X is the same as the index position of median of Y in Y.
μ
y
= aμ
x
+ b
σ
y
= aσ
x
+ b
Validate
Solution:
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