因为是随机的，所以不会，符合正态分布的，符合自然界数据的产生，除非你的产品不符合自然分布，显得太过于随机了，不然看不出来的
Number of rows of data to generate: Enter the number of rows of random data you want to generate.
Store in column(s): Enter storage column(s) for the generated values.
Mean: Enter the mean value you want to use as the center of the normal distribution.
Standard deviation: Enter the standard deviation value you want to define the normal distribution.
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