statistics by miranda fernandez research in ecology
TRANSCRIPT
Statistics
By Miranda Fernandez Research in Ecology
Sharp-Nose Sharks
female
male
920 930 940 950 960 970 980 990 1000
Average Length of Sharp-Nose Sharks
Length in Millimeters
Sea turtles
Blue
Yellow
Green
Red
Orange
0 5 10 15 20 25
Percentage of Surviving Turtles
#hatchlingsSurvived
Number of Hatchlings
Colo
rs
Bottle Caps
Percentage of bottle caps found by color
redorangeyellowbluegreenblackwhiteclear
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
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
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
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
T. TestControl Treatment
14 1413 1313 1513 1513 1513 14
14141515
0.000545T-Test Formula above
Pooled variance formula below