Z score and empirical rule
[DOC File]Z-Score Practice Worksheet
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A score of 60, where the mean score of the sample data values is 40. Z=2. A score that is 30 points below the mean. z=-3. A score of 80, where the mean …
[DOC File]Numerical Measures of Central Tendency
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-- The z-score of any observation is found by subtracting the mean, and then dividing by the standard deviation. For any measurement x, Sample z-score: …
[DOC File]Z-Score Practice Worksheet
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A score of 80, where the mean score of the sample data values is 30. A score of 20, where the mean score of the sample data values is 50. IQ scores have a mean …
[DOCX File]2A.11a Just In Time Quick Check - Virginia Department of ...
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Statistics Notation, Mean, Median, Mode, Variance, Standard Deviation (Definition), Standard Deviation (Graphic), z-Score (Definition), z-Score (Graphic) …
[DOC File]Z-Score Practice Worksheet
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Z-Score. A normal distribution of scores has a standard deviation of 10. Find the z-scores corresponding to each of the following values: A score of 60, where …
[DOCX File]Describing and Interpreting Data
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The Z-score is the number of standard deviations a data value is from the mean. If a data point has a z score that is less than -3 or greater than +3, it is …
[DOC File]Chapter 2 Review
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how to apply the Empirical rule (68-95-99.7) to find both percents and interval for a given percent. how to use the z-score table to find the percentile and how …
[DOCX File]2A.11b Just In Time Quick Check - Virginia Department of ...
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This may indicate that the student does not understand how the z-score is related to the normalized distribution of class grades. A potential teaching strategy could …
[DOC File]3 .tw
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For the data from factory 1 and factory 2, all the data are within 2 sample deviations of mean, i.e., all the data have z-score with absolute values smaller than 2.
[DOC File]Z-Score Practice Worksheet - Wheeler High School
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For the numbers below, find the percent of cases falling above the z-score: 0.24 -2.07 A patient recently diagnosed with Alzheimer’s disease takes a cognitive …
[DOCX File]cpb-us-e1.wpmucdn.com
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Find the z-score that corresponds to each life span. According to the z-scores, would the life spans of any of these tires be considered unusual? The life spans of …
[DOC File]STA 2122 - Florida International University
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**Note: Any z-score that has an absolute value greater than 3 is considered an outlier, while |z-scores| between 2 and 3 are possible outliers. Also, whenever a …
[DOC File]Z-scores and Empirical Rule Notes - blogs
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The z-table values give you the percent that throws . less. than the given amount. Therefore, once you find the z-score, simply look it up on your z-table.
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