Worksheet1 Ch 2
__________________________________________
Surname (e.g. “Straayer”), Given Name (e.g. “Dave”)
Here is unemployment data for the last few months:
10/1/2009
10.1
11/1/2009
10
12/1/2009
10
1/1/2010
9.7
2/1/2010
9.7
3/1/2010
9.7
Make a bar chart on each set of axes. Which visually exaggerates the drop in
unemployment?
Here is yearly unemployment data for the last 10 years:
4
4.7
5.8
6
5.5
5.1
4.6
4.6
5.8
9.3
Calculate mean ________________ and median __________________
Calculate a 5-number summary: _____, _____, _____, _____, _____ and label the 5
numbers (below them).
What is the IQR? : ______________________
Calculate the standard deviation as we have discussed it in this class.
Standard deviation : ______________________