Statistics Slide Show By, Isa Antonini.

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Presentation transcript:

Statistics Slide Show By, Isa Antonini

Sharp-nosed Shark Sizes

Baby Turtle Survival

Probability Probability- a way to measure the chances that something will occur in relation to the possible alternatives. In other words, it is the chance that something will happen.

Distribution of 25 Sea Cigars

Percent Composition of Flotsam

ariance & tandard eviation Variance (s²)-how much variation there is away from the mean x= mean of data X= each data value Standard Deviation-the square root of variance s² = ∑ (x – X)² n-1

TDC of 25 Sea Cigars

The Chi-Square is used to test to see if there are any significant difference between data sites ∑ (observed – predicted)² predicted

The t-test is used to test whether there is a significant difference between the means of two independent samples