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                            ![](https://img.kancloud.cn/ab/dd/abdde2ae9a502f175c82c5fdd17f49b5_1393x787.png)
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![](https://img.kancloud.cn/1c/dc/1cdcb7284ca4da4331c07025c2af904c_1387x787.png)
![](https://img.kancloud.cn/2b/8a/2b8a03daabe8f8643b0eaca0e422ac82_1454x807.png)
![](https://img.kancloud.cn/52/10/521016daa789c8c25780778c477c0e4a_1425x808.png)
樣本容量越大，均值的標準誤差越小，分布的變異程度越小。
![](https://img.kancloud.cn/41/af/41afba3a0ac138dad887386d0ddebe74_1436x784.png)
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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