## ← Formula for Number of SDs - Intro to Descriptive Statistics

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Showing Revision 3 created 05/25/2016 by Udacity Robot.

1. What formula describes what you did. To find the number of standard deviations
2. each values from the mean. Let's go over a values X. So in the case of me, X was
3. 63. In the case of Andy X was 54. Was it Mu minus X. Or did we do X minus Mu. X
4. minus Mu times sigma. X minus Mu divided sigma. Mu minus X times sigma. Or did
5. we do mu minus x divided by sigma? Now remember that in the last two quizzes you
6. got a positive number. So we're just looking for the formula that describes the
7. positive distance that we were from the mean.