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Statistics and computer

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Presentation on theme: "Statistics and computer"— Presentation transcript:

1 Statistics and computer
By: Dina Tazkarji

2 The Shark Graph

3 The Turtle Graph

4 The probability and chance of the corals
Probability: is a way to measure the chances that something will occur in relation to the possible alternatives.

5 Mangrove sea cigars

6 THEORETICAL DISTRIBUTION CURVE GRAPH

7 The percent composition by mass of flotsam (pie chart)

8 The variance for sea cigar length
Variance and standard deviation: are 2 values that are used in statistics to describe how far away your data from the mean. 6.7 7.3 7.5 9.4 9.8 11.2 12.5 13.1 17 δ2 = 10.8 δ = 3.3

9 Chi-square Test The chi-square test can be used to see if there are any significant differences between data sites or source.

10 T-test The t-test is an equation used to design tests whether there is a significant difference between the means of 2 independent samples. Question: should the fearless have rejected the null hypothesis? Answer: yes, the fishers should have the null hypothesis because their T-statistic value was calculated to be 3.75, which is greater than the critical value of from the T-statistic table at 14 degrees of freedom and at the p-value of 0.05.


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