statistics by miranda fernandez research in ecology
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Statistics
By Miranda Fernandez Research in Ecology
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Sharp-Nose Sharks
female
male
920 930 940 950 960 970 980 990 1000
Average Length of Sharp-Nose Sharks
Length in Millimeters
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Sea turtles
Blue
Yellow
Green
Red
Orange
0 5 10 15 20 25
Percentage of Surviving Turtles
#hatchlingsSurvived
Number of Hatchlings
Colo
rs
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Bottle Caps
Percentage of bottle caps found by color
redorangeyellowbluegreenblackwhiteclear
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Red Mangrove's
"1-5" "6-10" "11-15" "16-20" "21-25" "26-30" "31-35" "36-40" "41-45"0
1
2
3
4
5
6
7
8
9
10
0 0
6 6
10
3
0 01
Frequency Distribution of sea cigars by size
Frequency
Size of sea cigars
Am
ount
of
sea c
igars
size class Frequency "1-5" 0"6-10" 0"11-15" 6"16-20" 6"21-25" 10"26-30" 3"31-35" 0"36-40" 0"41-45" 1
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Coral Survival
Theoretical Observed0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0.5 Probability Rate of Surviving Corals
Series1
Num
bers
counte
d b
y
Type of Coral
What is Probability? a measure or estimate of the degree of confidence one may have in the occurrence of an event
Factors that effect Survival1.Water Temperature2. Depth3.Wave action
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Variance
What is
Variance?
Variance is the amount different from the mean.
Variance Table
6 .77 .37 .57 .59 .49 .8
11 .212 .513 .1
1710 .775 55 556
V a r i a n c e3 .2 826 14 134
S .D
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Distribution of sea cigars
1 3 5 7 9 11 13 15 17 19 21 230
0.5
1
1.5
2
2.5
3
3.5
4
Distribution of Sea Cigars
Series1
Size in centimeters
freq
uen
cy
Size Frequency7 29 2
10 111 112 313 314 215 416 317 218 123 1
4 6 8 10 12 14 16 18 20 22 240
0.5
1
1.5
2
2.5
3
Theoretical Distribution of sea cigars
Length (cm)
Freq
uenc
y
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T. TestControl Treatment
14 1413 1313 1513 1513 1513 14
14141515
0.000545T-Test Formula above
Pooled variance formula below