BE 540 Introduction to Biostatistics Biostatistics and Epidemiology UMass Amherst
 Welcome This Week Syllabus Lectures Demonstrations Assignments Resources

Summarizing Data
Introduction to Probability
Populations and Samples

Bernoulli and Binomal Distributions
Normal Distribution
Estimation
Hypothesis Testing
Chi Square Tests
Correlation/Regression

1. Summarizing Data

 1. Scales of Measurement …….……………………....… 2 2. Descriptives for Nominal and Ordinal Data ……....…… 7 a. The Bar Chart …………….…………………....…….. 9 b. The Pie Chart ..... …………….…………………….. .13 3.  Descriptives for Continuous Data ..………….…..….. 14 a.   The Histogram …………………………..……..….. 15 b.  The Frequency Polygon ………………………….… 19 c.  The Cumulative Frequency Polygon ……………...…. 20 d. Percentiles (Quantiles) ……………………………..... 21 e. Quantile Quantile ………………………………….… 22 f. Stem and Leaf Diagram …………………………....… 23 g. Box and Whisker Plot ……………………………..... 24 4. The Summation Notation .…………………………… 25 5. Measures of Central Tendency ……….……………… 26 a. The mode ………………………………………..….. 29 b. The mean ……..………………………….………..... 30 c. The median ………………………………….…..…... 33 6. Measures of Dispersion ………………..………….… 35 a. Variance ………………………………..…………… 36 b  Standard Deviation . …………………..…………...... 37   c. Median Absolute Deviation from Median …………... 39 d. Standard Deviation v Standard Error …… ……….…. 40  e. A Feel for Sampling Distributions ……………………. 42 f.  The Coefficient of Variation ………………………..... 45 g. The Range ……………………………………….….. 46

Topic 2. Introduction to Probability
Topic 3. Populations and Samples

Topic 4. Bernoulli and Binomial Distributions

Topic 5. Normal Distribution

Topic 6. Estimation

Topic 7. Hypothesis Testing

Topic 8. Chi Square Tests

Topic 9. Correlation and Regression

 Welcome | This Week| Syllabus | Lectures |Demonstrations | Assignments | Resources

 Copyright 2004University of Massachusetts, Amherst. This is the course web site for BIOEPI 540W, Department of Biostatistics and Epidemiology. Produced and maintained by the School of Public Health and Health Sciences. Send comments or questions about this web site to cbigelow@schoolph.umass.edu. Page updated: September 9, 2004