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x P(x) 0 0.05 1 0.05 2 0.2 3 0.7 Find the standard deviation of this probability distribution. Give your answer to at least 2

x	P(x)
0	0.05
1	0.05
2	0.2
3	0.7

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

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