statistics
DESCRIPTION
Statistics. By: Gabriel Placido. Sharp nose sharks stay in the range of 30 to 40 inches. In schools, females are the biggest. In the open water Males tend to be bigger. They are not dangerous. They eat shrimp, mollusks and small fish. - PowerPoint PPT PresentationTRANSCRIPT
STATISTICSBy: Gabriel Placido
Males
Females
920 930 940 950 960 970 980 990 1000
Average Length of Sharp Nose Sharks
Length in
mm
Sharp nose sharks stay in the range of 30 to 40 inches. In schools, females are the biggest. In the open water Males tend to be bigger. They are not dangerous. They eat shrimp, mollusks and small fish.
blue yellow green red
0
5
10
15
20
25
Survived
# Hatchlings
Survived# Hatchlings
Sea turtles are endangered. They are protected by law. 1% of the hatchling live to be an adults. They’re one of earth’s ancient creatures.
The mean is the quotient of the sum of several quantities and their number, an average.
20%
6%
8%
16%12%
8%
14%
14%
Percentage of bottle caps on the beachred orange yellow blue green black white clear
Percentage is a rate, number, or amount in each hundred
"1-5" "6-10 "11-15" "16-20" "21-25" "26-30"0
2
4
6
8
10
12
Length in centimeters
Frequency
Frequency Distribution of Sea Cigars by Size Class
Size class Frequency"1-5" 0"6-10 3"11-15" 4"16-20" 12"21-25" 5"26-30" 1
Red Mangroves reach about 6 meters, but in the tropics they may grow to four times that height.
Theoretical probability
observed probability
0.22 0.44Factors that affect the coral planula are water temperature, substrate/depth and wave action.
theoretical probability observed probability0
0.050.1
0.150.2
0.250.3
0.350.4
0.450.5
Probability of Coral Survival
Probability-the extent to which something is probable.
trial # 1
water temperature
substrate/depth
wave action
survived
1 3 2 3 no2 2 1 2 no3 2 1 4 yes4 6 5 2 no5 6 2 5 no6 2 2 4 yes7 4 6 5 no8 5 3 1 no9 3 2 1 no
10 3 4 4 yes11 2 2 3 no12 5 1 4 yes13 5 2 4 yes14 2 3 6 yes15 4 3 1 no16 3 2 6 yes17 3 2 5 yes18 4 4 2 no
Standard Deviation
A quantity calculated to indicate the extent of deviation for a group as a whole
Variance
The fact or quality of being different, divergent, or inconsistent
1 2 3 4 5 6 7 8 9 1011121314151617181920212223240
0.51
1.52
2.53
3.54
Actual distribution of Sea cigars by length
Length in cm
Frequency
4 6 8 10 12 14 16 18 20 22 240
0.5
1
1.5
2
2.5
3
TDC of Sea cigars
Length in cm
Frequency
A Theoretical Distribution Curve (TDC) is a theoretical or ideal picture of a distribution based upon random sampling.
T-Test
A t-test is any statistical hypothesis test in which the test statistic follows a Student's t distribution if the null hypothesis is supported.
P value has to be less than .5
