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Unformatted text preview: • The third graph showed that the steel marbles were a little better at spreading out between each final position rather than how the glass marble had more in the middle than on the outsides. • Thus, I think the size of the marble did have a difference in the experiment, which proved my hypothesis to be wrong. Using the smaller radius of the steel marble increased my St. Dev. and also made my x(av) value differ much more than the other two had. Error Analysis: • Since the x(av) was not at zero than we can conclude that it wasn’t exactly random. Zero would be expected if the marble started at zero and went in a randomized pattern each time. Since none of my x(av)’s were zero than I conclude that was an error. The level that we used could have also been inaccurate, which ultimately would make our data inaccurate too....
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 Spring '08
 Turner
 Normal Distribution, Probability distribution, probability density function, Austin Green, Gaussian probability curve

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