Standard Deviation Flashcards
What is Standard Deviation?
Standard Deviation is a measure of How spread out all you REPEATS are from your mean
What are the advantage of using Standard Deviation instead of the range?
[3reasons]
1.Range is only difference between Highest and Lowest
2.SD reduces effect of anomalies. Range includes Anomalies
3.SD used to indicate whether a difference between results is significant.
What would Knowing Standard Deviation be more useful for a conclusion?
If you add/minus standard deviation from mean - NO OVERLAP indicates likely to be a Significant Difference.
If you add/minus standard deviation from mean -YES OVERLAP likely NOT to be a significant difference
What is a key word to remember in Standard deviation?
OVERLAP