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[PDF File]EMPIRICAL PROJECT 5 MEASURING INEQUALITY: LORENZ CURVES ...
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WORKING IN EXCEL PART 5.1 MEASURING INCOME INEQUALITY One way to visualize the income distribution in a population is to draw a Lorenz curve. This curve shows the entire population along the horizontal axis from the poorest to the richest. The height of the curve at any point on the vertical axis indicates the fraction of total income received ...
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[PDF File]Using Excel 2010 to Find Probabilities for the Normal and ...
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Standard Normal Distribution The “Bell Curve” with a mean of 0 and standard deviation of 1. The curve is symmetric around 0 Often called the Z distribution Z represents the number of standard deviations an observations is from the mean The most referenced distribution in statistics Using Excel’s Norm.s.dist Function Z (the number of standard deviations away from the mean) can range from ...
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[PDF File]THE MAXWELL-BOLTZMANN DISTRIBUTION FUNCTION
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Now in Excel you will create the data points for dN/N and c and then plot dN/N vs. c. You will create two distribution functions, each with a different temperature and molecular weight. Finally, you will be able to change either molecular weight or temperature (the plots will be updated for each change) – for example, you can fix the temperature and change the molecular weight or vice versa ...
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[PDF File]Poisson Distribution Using Excel - DocserverItems
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Poisson Distribution Using Excel In this tutorial we will be solving Poisson Distribution problems using Excel. In our problem, we want to suppose that we have a consulting business that receives an average of 30 phone calls per hour, and during a two-hour period, we want to determine: the probability that exactly 50 calls will be received in the next two hours the probability that fewer than ...
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[PDF File]Chapter 2: Frequency Distributions and Graphs (or making ...
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Grouped frequency distribution – frequency of a quantitative variable with a large range of values, so the data must be grouped into classes that are more than one unit in width. Class Limits Age Group in Years (Lower, Upper) Class Boundaries (Lower, Upper) Frequency Cumulative Frequency 0 4 -0.5 4.5 51 51 5 9 4.5 9.5 31 82 10 14 9.5 14.5 27 109 15 19 14.5 19.5 116 225 20 24 19.5 24.5 184 ...
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[PDF File]Using “Solver” in Excel for non-linear curve fitting
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curve is then expected to have the minimum value of 2 i i ∑χ . We can use the ﬁSolverﬂ add-in in Excel to find the values of A, C and k that result in the minimum value for 2 i i ∑χ (cell G4) Procedure to Fit the Data 1. Under the ﬁToolsﬂ menu select ﬁSolverﬂ.* A new pop-up window will appear. 2. In the box labeled ﬁSet ...
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[PDF File]Checking normality in Excel
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The normal distribution peaks in the middle and is symmetrical about the mean. Data does not need to be perfectly normally distributed for the tests to be reliable. There are several methods for checking normality which include graphical methods, tests for normality and assessing skewness figures. It is not necessary to use all the methods; just select one or two. Excel’s options are limited ...
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Distribution curve in excel