Transcript What I Learned in Statistics

What I Learned in Statistics
Orko Sarkar
Sharks!!!(and bunnies)
• Jaws by Bunnies!!!!!
1200
1150
1100
1050
1000
950
900
850
Males
Females
Sea Turtles!!!!!
(boardgame)
25
20
15
10
Survived
Hatched
5
0
Hatched
Blue
Yellow
Green
Survived
Red
Orange
Planula Probability…
• Probability is a way to measure the chances
that something will occur in relation to the
possible alternatives.
• 4 out of 18 of my coral planula survived.
Frequency of Lengths of Sea Cigars
Sea Cigar Frequency
12
10
8
Series1
6
4
2
0
"1-5"
"6-10"
"11-15"
"16-20"
"21-25"
"26-30"
Flotsam
Percent Composition by Mass of Flotsam
1.40%
3.20%
12.50%
Turtle Grass 58.5g
Shoal Grass 2.3g
Red Mangrove Leaf 8.9g
Detritivores 1g
82.70%
Variance and Standard Deviation
• Variance and standard deviation are used in
statistics to describe how far away from the
mean your data are.
Theoretical Distribution Curve of Sea
Cigars
Distribution of 25 Sea Cigar Lengths
4
3.5
3
2.5
Theoretical Distribution
2
1.5
1
Actual Distrubution
0.5
0
1
2
3
4
5
6
7
8
9 10 11
12 13 14
15 16 17
18 19 20
21 22 23
24 25
Chi Squares in Turtles
• The Chi Square test can be used to see if there
are any significant differences between groups
of samples.
Chi Square in
turtles! Hardeehar-har!!!!
T-test
• The p-value generated by the t-test formula on
Microsoft Excel was .000545 which is less than
the p-value of 0.05, so there is a significant
difference between the control and treatment
groups.
• T-test’s measure whether there is a significant
difference between the means of two
independent samples(the treatment and control
groups).