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[DOCX File]Calculating the Standard Deviation - Anne Gloag's Math Page
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Calculating the Standard Deviation. If x is a number, then the difference "x - mean" is called its deviation. In a data set, there are as many deviations as there are items in the data set. The deviations are used to calculate the standard deviation. If the numbers belong to a population, in symbols a deviation is x − μ .
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[DOC File]STANDARD DEVIATION - St. Francis Preparatory School
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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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[DOCX File]CALCULATING STANDARD DEVIATION WORKSHEET
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The standard deviation is used to tell how far on average any data point is from the mean. The smaller the standard deviation, the closer the scores are on average to the mean. When the standard deviation is large, the scores are more widely spread out on average from the mean. The standard deviation is calculated to find the average distance ...
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[DOC File]Chapter 1 Review
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B. The range of data set 1 is larger than that of data set 2. C. The median of data set 1 is larger than that of data set 2. D. 50% of the data in set 1 is less than 15. E. The mean of set 2 is less than the mean of set 1. The mean birth weight of infants born at a certain hospital in the month of April was 128 oz. with a standard deviation of ...
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STATISTICS: Sect
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]CHAPTER 14: DESCRIPTIVE STATISTICS
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standard deviation. of a data set is the “average deviation from the mean.” σx – The lower case Greek letter σ is used to represent the standard deviation of a population data set. Sx – The lower case s is used to represent the standard deviation of a sample data set. Calculating standard deviation is a multi-step process.
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[DOC File]Standard deviation - 物理系
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The standard deviation is the most common measure of statistical dispersion, measuring how widely spread the values in a data set are. If the data points are close to the mean, then the standard deviation is small. As well, if many data points are far from the mean, then the standard deviation …
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[DOC File]CALCULATING STANDARD DEVIATION WORKSHEET
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Sep 26, 2015 · Find the standard deviation for the number of baskets scored by the team for the ten games: 8, 4, 6, 6, 7, 7, 9, 4, 8, 5. Follow the steps below to calculate the standard deviation. Step 1: Average the scores in the Score column of the table below in order from the smallest to the largest. Step 2: Find the mean of the data set and place your ...
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[DOCX File]STANDARD
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PS.2†The student will analyze numerical characteristics of univariate data sets to describe patterns and departures from patterns, using mean, median, mode, variance, standard deviation, interquartile range, range, and outliers.
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Calculating the standard deviation using a ... - Project Maths
The number now displayed is the mean of the data set. It should be 162.625 for the above data set. 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. It should be 9.32 for the above data set.
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Standard deviation calculator data set