What is the standard deviation of x ? X : 1 2 4 5 6 P : 0.15 0.25 0.20 0.30 0.10

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What is the standard deviation of

x ?

X :	1	2	4	5	6
P :	$0.15$	$0.25$	$0.20$	$0.30$	$0.10$

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