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← Increase Sample Size - Intro to Descriptive Statistics

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Showing Revision 1 created 08/15/2016 by Udacity Robot.

  1. 标准误差将等于总体标准偏差除以样本量的平方根
  2. 样本量现在是 250 现在分母更大了
  3. 表明标准误差将更小 结果是 1.01 的确更小
  4. 写在这里 这个抽样分布将会
  5. 更加瘦高