xiajie
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Wise_Life


			
				
					
						
						
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<html>
  <head>
    <title>抽奖算法</title>
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          <p><span>示例</span></p>
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          <p><span>算法</span></p>
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          <p><span>=(C2/(SUM(C2:C9))*100)</span></p>
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          <p><span>设：</span></p><p><span><br></span></p><p><span>概率为α</span></p><p><span><br></span></p><p><span>权重为β</span></p><p><span><br></span></p><p><span>若奖品数为：N，</span></p><p><span><br></span></p><p><span>1）则各自奖品的权重分别为：β1、...、βN</span></p><p><span><br></span></p><p><span>2）则各自奖品的概率分别为：α1、...、αN</span></p><p><span><br></span></p><p><span>则，若要计算α1概率，算法为：</span></p>
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          <p><span>α1=</span></p>
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          <p><span>(β1/（β1+...+βN）)*100</span></p>
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