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x P(x) 0 0.25 1 0.25 2 0.3 3 0.2 Find the standard deviation of this probability distribution. Give your answer to at least 2

x	P(x)
0	0.25
1	0.25
2	0.3
3	0.2

Find the standard deviation of this probability distribution. Give your answer to at least 2 decimal places

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