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作图
例题
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variance\:1,\:2,\:3,\:4,\:5,\:6
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variance\:\left\{0.42,\:0.52,\:0.58,\:0.62\right\}
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variance\:-4,\:5,\:6,\:9
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variance\:\left\{90,\:94,\:53,\:68,\:79,\:84,\:87,\:72,\:70,\:69,\:65,\:89,\:85\right\}
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variance\:\frac{31}{100},\:\frac{23}{105},\:\frac{31}{205},\:\frac{54}{205}
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variance\:\:\left\{1,\:7,\:-3,\:4,\:9\right\}
variance-calculator
variance \left\{90, 94, 53, 68, 79, 84, 87, 72, 70, 69, 65, 89, 85\right\}
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