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Statistics By: Ethan Corey.

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Presentation on theme: "Statistics By: Ethan Corey."— Presentation transcript:

1 Statistics By: Ethan Corey

2 Sharp-nosed Sharks

3 Sea Turtles

4 Bottle Caps

5 Sea Cigars Size Class Frequency "1-5" "6-10" 1 "11-15" 9 "16-20" 5
"6-10" 1 "11-15" 9 "16-20" 5 "21-25" 7 "26-30" 3 Sea Cigars

6 The factors that affect corals survival are the temperature of the water, the water depth, how active the waves are. Will the Coral Survive Probability is a way to measure the chances that something will occur in relations to the possible alternative

7 Variance σ2 The variance (s2) is calculated as:
9 13 14 15 16 17 18 20 21 22 23 24 25 26 28 30 28.3 Variance Variance σ2 The variance (s2) is calculated as: Variance is a value that is used in Statistics to describe how far away your data sets are from the mean. ∑=sum X=mean of the value n=number of numbers s2= Variance X=each data value

8 9 13 14 15 16 17 18 20 21 22 23 24 25 26 28 30 5.3 Slandered Deviation Standard Deviation σ Standard Deviation describes how spread out the data are. ∑=sum X=mean of the value n=number of numbers σ= Standard Deviation X=each data value

9 Theoretical Distribution(TDC)
It is an ideal picture of a distribution based upon a sampling

10 T-Test Equation The P value has to be less than 0.05 to reject the null


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