Hi Everybody,
Here are the latest and last worksheets for the statistics part of the Statistics and Probability Unit. The next worksheets will be on probability. As always, the worksheets are numbered, so I encourage you to do them in numerical order. However, with weighted mean and trimmed mean, the order you do them in is not important.
Weighted means are used in determining marks, with parts of the course worth different percentages of the final grade. Trimmed means are used in all manner of places, including Olympic scoring of gymnastics, figure skating and diving, the judged events. They drop the highest and lowest marks given by the judges to try to prevent bias from playing a part in the scoring.
If you have questions, email me and I will help.