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Statistics and Computers
By: Julian James
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Atlantic Shark Graph
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Sea Turtle Survival Graph
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Chances of success for a Coral Planula
6 out of 18 coral planulas Survived because there was not enough heat for the corals Date 6/23/09 Time: 10:30
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Variation Variance (s2) is two values that are used in statistics to describe how far away your data are from the mean is variance and standard deviation. Set 1: 8,9,10,11, set 1 isnt far from the mean Set 2: 1,2,10,17, set 2 is far from mean
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Standard Deviation Describes how spread out the data are.
The sq. root of variance. Sq.root of 10.8 = 3.3=σ
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Theoretical Distribution
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Chi-square The chi-square test can be used to see if there are any significant differences between data sites or sources. Chi-Square formula:χ2= ∑(observed-predicted)2 Predicted
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The t-test The t-test equation can be used to calculate the t-statistic is one designed to test whether there is a significant difference between the means of two independent samples.
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