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[DOC File]Chapter 1 Review
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A. The mean is larger than the median. B. The distribution is strongly skewed to the left. C. The mean is equal to the median. D. It makes the most sense to use the mean and standard deviation as a numerical summary of the center and spread of this distribution. E. The mean is less than the median.
standard deviation relation to mean

[DOC File]AP Statistics
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Based on the relationship between the mean, standard deviation, and minimum time, is it reasonable to believe that the distribution of 40-yard running times is approximately normal? Explain. No, it is not reasonable to believe that the distribution of 40-yard running times is approximately normal, because the minimum time is only 1.33 standard ...
what is mean standard deviation

[DOC File]00 PSY221 title and cover page - Fayetteville State University
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a. the new standard deviation and the old standard deviation will be the same. b. the new standard deviation will be twice as large as the old standard deviation. c. the new standard deviation will half the size (twice as small) as the old standard deviation. d. not enough information to answer this question. Two samples are as follows. Sample ...
standard deviation definition

[DOC File]AP Statistics LEOCT
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Consider a normal distribution that has a mean of 78 and a standard deviation of 6. What is the percentile rank, to the nearest integer, of a value of 82 in this distribution? A. 82%. B. 78%. C. 75%. D. 84%. E. 80%. Use the following information to answer questions 19 – 20.
how to interpret standard deviation

[DOC File]Paper Reference(s)
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Although the mean was often found correctly the usual problems arose in part (c) with the standard deviation. Apart from those who rounded prematurely, some forgot the square root and others used instead of the correct first term in their expression and there was the usual crop of candidates who used n = 6 instead of 104.
simple definition of standard deviation

[DOC File]FE Exam Review
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In statistics, the standard deviation measures. A standard distance. c. a normal distance. Dispersion d. central tendency. If the null hypothesis for a population mean is , where c is a constant, then the alternative hypothesis must be: c. d. A dice is a cube with six sides. Each side is labeled uniquely with the numbers from one to six.
standard deviation and mean distribution

[DOC File]STATISTICS - SUMMARY
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Properties: Bell shaped, mean=median=mode give center of distribution, symmetric about the mean, has infinite range, interquartile range =1.33 std deviations, ie. plus or minus two thirds of std. dev. from mean. 68% of values within one standard deviation of mean, 95% within two, and roughly 99% within three standard deviations.
standard deviation vs variance

[DOC File]2002 AP Statistics Multiple Choice Exam.doc
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(A) Normal with mean 1 and standard deviation (1 (B) Normal with mean (1 and standard deviation (1 (C) Normal with mean (1 and standard deviation 5 (D) Normal with mean 1 and standard deviation 7 (E) Normal with mean (1 and standard deviation 7. 27. A t-statistic was used to conduct a test of the null hypothesis H0: ( = 0 against the ...
mean and standard deviation examples

[DOC File]Standard deviation - 物理系
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4. Relationship between standard deviation and mean. The mean and the standard deviation of a set of data are usually reported together. In a certain sense, the standard deviation is a "natural" measure of statistical dispersion if the center of the data is measured about the mean. This is because the standard deviation from the mean is smaller ...
standard deviation relation to mean

Mean and standard deviation relationship