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PowerPoint Presentation analysis.pdf · o 28 24 20 12 100 Total Counts: 100 Mean: 149.89 170 180...

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Page 1: PowerPoint Presentation analysis.pdf · o 28 24 20 12 100 Total Counts: 100 Mean: 149.89 170 180 190 200 110 120 130 140 150 160 Bin Centre o 28 24 20 12 100 Total Counts: 100 Mean:
Page 2: PowerPoint Presentation analysis.pdf · o 28 24 20 12 100 Total Counts: 100 Mean: 149.89 170 180 190 200 110 120 130 140 150 160 Bin Centre o 28 24 20 12 100 Total Counts: 100 Mean:
Page 3: PowerPoint Presentation analysis.pdf · o 28 24 20 12 100 Total Counts: 100 Mean: 149.89 170 180 190 200 110 120 130 140 150 160 Bin Centre o 28 24 20 12 100 Total Counts: 100 Mean:
Page 4: PowerPoint Presentation analysis.pdf · o 28 24 20 12 100 Total Counts: 100 Mean: 149.89 170 180 190 200 110 120 130 140 150 160 Bin Centre o 28 24 20 12 100 Total Counts: 100 Mean:
Page 5: PowerPoint Presentation analysis.pdf · o 28 24 20 12 100 Total Counts: 100 Mean: 149.89 170 180 190 200 110 120 130 140 150 160 Bin Centre o 28 24 20 12 100 Total Counts: 100 Mean:
Page 6: PowerPoint Presentation analysis.pdf · o 28 24 20 12 100 Total Counts: 100 Mean: 149.89 170 180 190 200 110 120 130 140 150 160 Bin Centre o 28 24 20 12 100 Total Counts: 100 Mean:

Standard Deviation (width of the distribution) is independent of the number of measurements!

The Standard Deviation is a property of what is being measured and how the measurements are being made. To decrease the standard deviation of the distribution of measurements, need to improve measurement method.

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Page 8: PowerPoint Presentation analysis.pdf · o 28 24 20 12 100 Total Counts: 100 Mean: 149.89 170 180 190 200 110 120 130 140 150 160 Bin Centre o 28 24 20 12 100 Total Counts: 100 Mean:
Page 9: PowerPoint Presentation analysis.pdf · o 28 24 20 12 100 Total Counts: 100 Mean: 149.89 170 180 190 200 110 120 130 140 150 160 Bin Centre o 28 24 20 12 100 Total Counts: 100 Mean:

Standard deviation of a random set of measurements is independent of the number of measurements, N.

The accuracy with which we can determine the mean of a random set of measurements is NOT independent of the number of measurements, N.

The uncertainty in the mean is given by the standard error which is 𝜎/ 𝑁.

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Page 12: PowerPoint Presentation analysis.pdf · o 28 24 20 12 100 Total Counts: 100 Mean: 149.89 170 180 190 200 110 120 130 140 150 160 Bin Centre o 28 24 20 12 100 Total Counts: 100 Mean:

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