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9 Cards in this Set
- Front
- Back
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define standard deviation |
the measure of how closely all the data in one data set surround the mean |
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normal distribution |
when the majority of the is found close to the average of the set |
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variance |
The average of the squared differences from the Mean |
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how to calculate the variance |
find the mean of the data set, then subtract the mean from each of the values in the dataset, then square the results, then average these results. |
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to calculate the standard deviation.. |
you square root the variance |
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standard deviation helps us to determine the normal distribution. yes or no? |
yes |
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1 standard distribution of the mean means that the data falls within a |
normal distribution |
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how to calculate the range of the normal distribution (1 standard deviation from the mean) |
subtract and add the standard deviation to the mean |
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how to calculate 2 standard deviations away from the mean? |
you would add and subtract the standard deviation from the range |
