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Earn +20 ptsQ: What will the sum of the deviation score always be?
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Continue Learning about Statistics
What is the sum of squared deviation?
The variance.
What happens to the standard score as the standard deviation increase?
The standardised score decreases.
How do you calculate standard deviation with the help of z-score?
A z-score cannot help calculate standard deviation. In fact the very point of z-scores is to remove any contribution from the mean or standard deviation.
When is a t test better than a z score?
When you don't have the population standard deviation, but do have the sample standard deviation. The Z score will be better to do as long as it is possible to do it.
A z score is most affected by?
standard deviation
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