Thursday, August 7, 2014

Statistics Post 5

The Great Lake Fishing Competition
One of the very best weekends you can have fishing is an annual Trout fishing competition on Lake Taupo.  It is called the "Open Trout Tournament" - anyone can enter. 


Today we're going to do our own fishing - I will bring along Lake Taupo in a can.  There are literally thousands and thousands of fish in the lake/can.  Each of you will *catch* a pinch full of some fish (some will catch more than others).  You can find your own fishing spot (in the can) and fish there.  Then we'll find out some results.  There will be a prize for the best table/boat (the biggest fish and the biggest average). 

The learning today is about Samples.  A sample is technically a small part/subset of the population.  Our sampling is randomRandom means that every fish in the can has an equal chance of being caught.  We have to shake the can each pick to better ensure it's random. 

We are going to need a way of recording down our results for each boat.  For this we need to have a grouped frequency table. 


Here is a link to the results from this years competition - we can open it to see if our averages and biggest fish would have compared. 

No comments:

Post a Comment