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#1
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I have data consisting of 6000 numbers such as: -
1.78 4.56 2.26 8.37 8.62 4.98 0.00 1.78 The average of my data is 3.26 How do I go about plotting the distribution of the data on a chart? ie 120 number 4.56's, 50 number 2.26's, 600 number 8.37's Any ideas? TIA |
#2
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What you are wanting is not clear.
Some possibilities include - In a separate locatation list the unique values in one column and in a second column use COUNTIF() to determine that there are 120 4.56's etc. then the second column (y) vs. the first (x) as an "XY (Scatter)" chart - Use the Analysis ToolPak to plot a histogram of the data - Calculate the STDEV() of the data and plot NORMDIST(x,Ave,SD,FALSE) vs. a column of hypothetical x values spanning the range Also, if this data is supposed to follow the normal distribution, then the sample data should be roughly symmetrical around and peaked at the average. The three reported values (50x2.26, 120x4.56, 600x8.37) do not sound very consistent with normality (what does the rest of the data set look like?) Jerry Anthony Slater wrote: I have data consisting of 6000 numbers such as: - 1.78 4.56 2.26 8.37 8.62 4.98 0.00 1.78 The average of my data is 3.26 How do I go about plotting the distribution of the data on a chart? ie 120 number 4.56's, 50 number 2.26's, 600 number 8.37's Any ideas? TIA |
#3
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Anthony -
To obtain a frequency distribution and column chart, you could use Excel's Histogram tool. Your data may or may not follow the shape of a normal curve. For a slightly better histogram, try my free add-in from the "Better Histogram" page at www.treeplan.com. - Mike www.mikemiddleton.com +++++++++++++++++++++++ "Anthony Slater" wrote in message ... I have data consisting of 6000 numbers such as: - 1.78 4.56 2.26 8.37 8.62 4.98 0.00 1.78 The average of my data is 3.26 How do I go about plotting the distribution of the data on a chart? ie 120 number 4.56's, 50 number 2.26's, 600 number 8.37's Any ideas? TIA |
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