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Mathematics
The probability distribution of a random variable X is given by
X=x
0
1
2
3
4
P(X=x)
0.4
0.3
0.1
0.1
0.1
The variance of X is
$(a)\;1.76 \\(b)\;2.45 \\(c)\;3.2 \\(d)\;4.8 $
jeemain
eamcet
math
2007
q44
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asked
Oct 25, 2013
by
meena.p
edited
Jan 20, 2014
by
meena.p
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1 Answer
(a) 1.76
answered
Nov 7, 2013
by
pady_1
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