Useful Links and Files
iPhone spreadsheets:
- A good free spreadsheet that supports unlimited data is "Free Spreadsheet" available at www.luminantsoftware.com or through the apple store
Online calculators
- Online stats calculators are available at www.easycalculation.com (look in the statistics section)
11f.4.4a The Normal Distribution
A lot of real world data is distributed normally. Find out what this means as we look at the shape of normal frequency distributions and see what a normal curve looks like.
Resources:
Assignment
- HW p251 #1, 4, 5, 6, 10, 11
11f.4.3 Standard Deviation
Another method of measuring dispersion is called the standard deviation. It tells us how closely the data is clustered around the mean. Lower standard deviation scores show more clustered data.
Resources
Assignment
- Homework: P233 #1, 2, 3, 5, 6, 9, 10 *14