MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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d. Apply the range rule of thumb to estimate the standard deviation of each of the two data sets. Briefly discuss why it does or does not work well. Find the standard deviation for the faculty data set using the range rule of thumb.
s=
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- Below is a sample of 10 quiz grades for a student in a Quantitative Reasoning class. Calculate the Standard Deviation by finding the deviations for each quiz grade as well as the listed statistics. Round to 2 decimal places as needed. Quiz Grade 70 90 70 50 Deviation 80 Listen 50 70 90 70 90 Squared Deviation Mean Quiz Grade Min Quiz Grade Max Quiz Grade Range of Quiz Grades The sum of DEVIATIONS is always equal to Sum of Squared Deviations Quiz Count Degrees of Freedom Variance Standard Deviation which is why the squared deviation is needed.arrow_forwardThe ages (in years) of a random sample of shoppers at a gaming store are shown. Determine the range, mean, variance, and standard deviation of the sample data set. 12, 21, 23, 15, 20, 18, 21, 16, 15, 16 The range is 9 (Simplify your answer.)arrow_forwardThe numbers of courses taught per semester by a random sample of university professors are shown in the histogram. Make a frequency distribution for the data. Then use the table to estimate the sample mean and the sample standard deviation of the data set. Make a frequency distribution for the data. X 1 3 f Number of professors 25- 20- 15- 10- 4 20 23 15 1 2 3 4 Number of courses taught per semesterarrow_forward
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