About James Carlton

Read All Posts By James Carlton

8 thoughts on “Z-score introduction | Modeling data distributions | AP Statistics | Khan Academy

  1. Sal forgot to subtract 1 from the number of data points, resulting in an incorrect standard deviation of approximately 1.69–√(20÷7). The correct standard deviation is approximately 1.83–√(20÷6).

Leave a Reply

Your email address will not be published. Required fields are marked *