STATISTICS

Male

Female

925 935 945 955 965 975 985 995Male Female

Series1 952 998

Mean Length of Sharp-nosed shark

lenght in mm

Gender of sharks

The shark, on the other hand, consumes small prey, such as small bony fishes, abalone, conch, snails, slugs, limpets, cowries, crabs, segmented worms and shrimps.

15%7%

5%

21%12%

1%

11%

18%

7% 3%

# of bottle capsredorangeyellowbluegreenpurpleblackwhiteclearother

"1-5" "6-10"

"11-15"

"16-20"

"21-25"

"26-30"

"31-35"

"36-40"

"41-50"

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Frequency Distribution of Sea Cigars by Size(cm)

Lenght(cm)

Freq

uenc

y

Theoretical observed0

0.050.1

0.150.2

0.250.3

0.35

Probability

survived

Prob

abili

ty

Corals are ancient animals related to jellyfish and anemones. An individual coral is known as a polyp, a very small and simple organism consisting mostly of a stomach topped by a tentacle-bearing mouth.

VARIANCE

Also called mean square deviation. The square of

the standard deviation.

STANDARD DEVIATION

Describes how spread out

the data is.

1 3 5 7 9 11 13 15 17 19 21 230

0.51

1.52

2.53

3.54

Actual Distribution of sea cigars in length

frequency

size (in cm)

freq

uenc

y

4 6 8 10 12 14 16 18 20 22 240

0.5

1

1.5

2

2.5

3

TDC of sea cigars

Theoretical distribution curve: An ideal picture of a distribution based on random sampling.

T- TEST

To test if there’s a significant difference between

the means of two independent samples.