How do I find standard deviation in this problem?

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In the ordered line : X: 4, 5, 9, 10, 11, 13, 16 P(X) 0.12, 0.1, 0.11,0.11,0.14,0.34,0,08 what is standard deviation? the mean is 10.31 Can you guys help me to find the standard deviation?