# Lab #7

Topics: 1911, Roman numerals, 1912 Pages: 2 (363 words) Published: December 27, 2012
Nicholas Massaro
Nicholas Massaro

SL TYPE II
SL TYPE II
Math Portfolio
Fish Production
Math Portfolio
Fish Production

Aim: This task considers commercial fishing in a particular country in two different environments – the sea and fish farms (aquaculture). The data is taken from the UN Statistics Division Common Database. The following table gives the total mass of fish caught in the sea, in thousands of tonnes (1 tonne = 1000 kilograms) Year (X)| 1980| 1981| 1982| 1983| 1984| 1985| 1986| 1987| 1988| Total Mass (Y)| 426.8| 470.2| 503.4| 557.3| 564.7| 575.4| 579.8| 624.7| 669.9|

Year (X)| 1989| 1990| 1991| 1992| 1993| 1994| 1995| 1996| 1997| Total Mass (Y)| 450.5| 379.0| 356.9| 447.5| 548.8| 589.8| 634.0| 527.8| 459.1|

Year (X)| 1998| 1999| 2000| 2001| 2002| 2003| 2004| 2005| 2006| Total Mass (Y)| 487.2| 573.8| 503.3| 527.7| 566.7| 507.8| 550.5| 426.5| 533.0|

Using the given points, my initial step is to plot them onto a coordinate grid to have a clear visual of what the data is trying to communicate. Using the graphing function from “padawan.dk,” I was able to obtain each point as it lies from the given set of data.

For this particular set of data, I set the, “Year,” on the x-axis, and the, “Total Mass,” on the y-axis. This stays consistent with the idea that the x-axis displays the independent values, while the y-axis displays the dependent values. In order to have a reasonable graph along with the displaying of both axes, I substituted in lower values for “X.” This way there is no change in the coordinates shown and the data is still consistent with the tables above. To obtain any correct year, it is a simple matter of the addition of “1979” to each value on the x-axis. To have a clear visual of the entire set of data, along with the possibility for interpolation, the windows settings chosen were as follows: X| Y|

Min: 0| Min: 0|
Max: 30| Max:...