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[DOCX File]CALCULATING STANDARD DEVIATION WORKSHEET
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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 from the mean. Practice Problem #1: Calculate the standard deviation of the following test data by hand. Use the chart below to …
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[DOC File]Answers: - Eastern Mediterranean University
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400_____500_____600, so k = 100/40 = 2.5 ⌠k is standard deviation of the mean, distance between 400 and 500 is 100, same as distance between 500 and 600. Thus k is simply 100/4⌡ From ====> Question 8: Given that mean number of drinks sold per year is 91.9 and the standard deviation is 4.67 at the nearby Wendy’s for the last 141 days.
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[DOCX File]AP BIOLOGY--LAWNDALE HS - Home
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Which do you expect to have the smallest standard deviation? Explain your answer. (b) Find the standard deviation for each data set. If your answers do not match your predictions, make sure to go back and explain how you can predict the ranking (i.e. smallest and …
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[DOC File]Solutions Manual for Fundamental Statistics for the ...
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12.3 The mean and standard deviation of the sample are 4.1 and 2.82, respectively, which are reasonably close to the parameters of the population for which the sample was drawn (4.5 and 2.6, respectively). The mean of the distribution of means is 4.28, which is somewhat closer to the population mean, and the standard deviation is 1.22.
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[DOC File]AP Stats Chapter 2 Exam Review
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C. a mean of 25 and a standard deviation of 1. D. a mean of 1 and a standard deviation of 1. E. a mean of 0 and a standard deviation of 1. ____ 15. If 30 is added to every number on a list, the only one of the following that is not changed is. A. the mean. B. the mode. C. the 75th percentile. D. the median. E. the standard deviation. Scenario 2-1
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[DOC File]JustAnswer
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Dec 15, 2010 · 5. A test consists of 90 multiple choice questions, each with five possible answers, only one of which is correct. Find the mean and the standard deviation of the number of correct answers. (Points: 4) mean: 45; standard deviation: 3.79 mean: 18; standard deviation: 4.24 mean: 18; standard deviation: 3.79 mean: 45; standard deviation: 6.71 . 6.
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[DOC File]Variance and Standard Deviation Questions - Web Maths
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The standard deviation σ. 2. Ten collie dogs are weighed (w kg). The following summary data for the weights are shown below: Σw = 241 Σw2 = 5905. Use this summary data to find the standard deviation of the collies’ weights. 3 . Eight students’ heights (h cm) are measured. They are as follows: 165 170 190 180 175 185 176 184 a
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Standard deviation questions and answers