Statistics and computer

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Presentation transcript:

Statistics and computer By: Dina Tazkarji

The Shark Graph

The Turtle Graph

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.

Mangrove sea cigars

THEORETICAL DISTRIBUTION CURVE GRAPH

The percent composition by mass of flotsam (pie chart)

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

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

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 2.145 from the T-statistic table at 14 degrees of freedom and at the p-value of 0.05.