1. Computers and Statistics Jack Lawhorn RiE Summer 2009

2. Average Length of Sharpnose Sharks
Male
Female
Gender

3. Chi² Test
The Chi Square test is used to see if there are any significant differences between groups of data samples.

4. Distribution of Mass in Flotsam
Key

5. Coral Probability Probability= the chance of an event occuring.
4 out of my __ coral polyps survived.

6. Standard Deviation & Variance
Variance= how close together a group of data is from the mean.
Standard Deviation= the square root of the variance.

7. Turtle Survival Percentage

8. Butterfly Pupation Project
Butterfly Survival
Control Sample #
Control Sample State
Treatment sample #
Treatment Sample State 1 S 2 D 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Chi-square Value: 3.24 compared w/ 3.84 from Chi-square table at 1 DF.
Above: S= Survived///D= Died
Bellow: Overall Survival Rate 59.4%  There was no significant difference but it was so close that it would be worth it to do the same experiment with hundreds or even thousands of samples.
Chi-square Table
Observed
Predicted 12
9.5 4
6.5 7 9

9. This Is the End of the Presentation
I Hope You Enjoyed It