It is always best to take the courses in order. Each one builds on the knowledge of the preceding course.
If it is a standard deviation below the mean, That means it is at about the 16th percentile. Z score is the score in terms of standard deviations.
-1 = Z = (score-mean)/SD
You do not indicate the mean or SD.
http://en.wikipedia.org/wiki/Standard_deviation
I am having difficulty with statistics..I am taking stats 4, but haven't taken 3 yet.
Explain deviation below or above the means please.
ex. If bill received a NCE score deviation below the mean, what would his score be? which is 10. Can you explain the standard deviation above the means?
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