Class Notes (839,246)
Canada (511,223)
Statistics (456)
STATS 2B03 (199)
Aaron Childs (197)

Introduction to biostatistics.docx

2 Pages

Course Code
Aaron Childs

This preview shows 80% of the first page. Sign up to view the full 2 pages of the document.
September 11 , 2012 STATS 2B03: Statistical Methods for Science Introduction to Biostatistics Scales of measurement (for categorical variables) - nominal scale:  when categories don’t have any order to them  consists if categorizing observations by name only, where the different categories can’t be ranked  e.g. categorizing by gender or race - ordinal scale:  consists of categorizing observations in such a way that the different categorize can be ranked according to some criteria  e.g. low/medium/high income or exercise/do not exercise Organizing data - example: 55, 63, 72, 41, 87, 75, 64, 60 - frequency table:  class boundaries  convention: when the class boundaries overlap, the right class boundary is not included in the interval Grouping Frequency Cumulative Relative Cumulative Frequency Frequency Percent (%) 40-50 1 1 1/8 = 12.5% 12.5% 50-60 1 2 1/8 = 12.5% 25% 60-70 3 5 3/8 = 37.5% 62.5% 70-80 2 7 2/8 =
More Less
Unlock Document

Only 80% of the first page are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.