Strategize a Smooth Tenant-to-tenant Migration and Copilot Takeoff
Penggambaran Data Secara Numerik
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2. Introduction to Probability and Statistics Eleventh Edition Robert J. Beaver • Barbara M. Beaver • William Mendenhall Presentation designed and written by: Barbara M. Beaver with minor change by Joon Jin Song
13. Extreme Values Skewed left: Mean < Median Skewed right: Mean > Median Symmetric: Mean = Median
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19. Two Ways to Calculate the Sample Variance Use the Definition Formula: Sum 25 5 14 60 0 45 1 -1 8 9 -3 6 9 3 12 16 -4 5
20. Two Ways to Calculate the Sample Variance Use the Calculational Formula: Sum 196 14 465 45 64 8 36 6 144 12 25 5
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26. Example The length of time for a worker to complete a specified operation averages 12.8 minutes with a standard deviation of 1.7 minutes. If the distribution of times is approximately mound-shaped, what proportion of workers will take longer than 16.2 minutes to complete the task? .025 .475 .475 95% between 9.4 and 16.2 47.5% between 12.8 and 16.2 (50-47.5)% = 2.5% above 16.2
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41. Example Amt of sodium in 8 brands of cheese: 260 290 300 320 330 340 340 520 Applet m = 325 Q 3 = 340 m Q 1 = 292.5 Q 3 Q 1