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martin edwards stats
Basic statistics
Question | Answer |
---|---|
What is the median | Middle number when numbers are ranked |
How do you calculate the mean | Add all numbers and divide by the total |
Why is the mean not a good measure of the average for an skewed distribution | Extreme values affect the mean |
What shape is a normal distribution | Bell shaped, symmetrical |
If the median is larger than the mean what shaped distribution would you expect | negatively skewed |