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[DOC File]Standard Deviation of the Average
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Standard Deviation. For a set of data points, the standard deviation measures spread by looking at how far the observations are from their mean. For samples, standard deviation is denoted by s. For instance, here are some examples. Each graph has a spread of 0 to 9. Here is the formula for finding the standard deviation:
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[DOC File]Variance and Standard Deviation Information
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94, 94, and 97. For this set of data, find the standard deviation to the nearest tenth. xi fi 87 3 89 4 91 3 93 6 95 2 3. Find, to the nearest tenth, the standard deviation of this set of data. Find the mean. 4. The 1999 win-loss statistics for the American League East baseball teams . on a particular date is shown in the accompanying chart.
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[DOC File]Standard deviation - 清華大學物理學系
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To find the standard deviation of a data set Input the data set as above. Press the RCL button and press the Mean button. The number now displayed is the standard deviation of the data set.
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Calculating the standard deviation using a ... - Project Maths
"standard deviation". Supposedly, the standard deviation tells us the size of a typical deviation from the mean for a particular set of data. Based on your answers to #4, guess at the value of the standard deviation. _____ Then take a guess as to how you think this value is might be calculated. Part Three.
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[DOC File]STANDARD DEVIATION - St. Francis Preparatory School
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12. The variance of a data set is the square root of the standard deviation. 13. The range of a data set is the difference between the highest value and the lowest value. 14. Chebyshev's theorem can be used to find the minimum percentage of the values in a data set …
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Standard Deviation | A Step by Step Guide with Formulas
Technically, the variance is the average squared deviation of a data set, and the standard deviation is the square root of the variance. These are not descriptions most people easily understand. Calculating the variance and standard deviation piece-by-piece gives us a firmer grasp of what exactly the variance and standard deviation are.
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[DOC File]Calculating a Standard Deviation
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In probability and statistics, the standard deviationof a probability distribution, random variable, or population or multiset of values is a measure of the spread of its values. It is usually denoted with the letter σ (lower case sigma). It is defined as the square root of the variance.
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[DOC File]Deviation and Standard Deviation
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=stdev(array) finds the standard deviation of a set of values, assuming it is sample data =stdevp(array) finds the standard deviation of a set of values, assuming it is population data. The Correlation and Least Squares Fit: =correl(array1, array2) finds the correlation between two data sets
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STATISTICS: Sect
Standard deviation: “mean of the means.” Use a normal distribution curve. The standard deviation is a statistic that tells you how tightly all of the data points are clustered around the mean in a set of data. When the examples are pretty tightly bunched together and the bell-shaped curve is steep, the standard deviation is small.
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Standard deviation of a set