## Elementary Statistics (12th Edition)

Mean:$0\cdot0.377+1\cdot0.399+2\cdot0.176+3\cdot0.041+4\cdot0.005+5\cdot0+6\cdot0=0.9$. Standard deviation: $\sqrt{(0-0.9)^2\cdot0.377+(1-0.9)^2 \cdot0.399+(2-0.9)^2\cdot0.176+(3-0.9)^2\cdot0.041+(4-0.9)^2\cdot0.005+(5-0.9)^2\cdot0+(6-0.9)^2\cdot0}=0.87$.
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