1 / 19

Chapter 5: Errors in Chemical Analysis

Overview. Mean

layne
Download Presentation

Chapter 5: Errors in Chemical Analysis

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. Chapter 5: Errors in Chemical Analysis CHE 321: Quantitative Chemical Analysis Dr. Jerome Williams, Ph.D. Saint Leo University

    2. Overview Mean & Median Accuracy & Precision Types of Errors in Data Random Errors Systematic Errors A Mean Calculation Using Excel

    3. Mean & Median Mean is arithmetic average of data set; evaluated as follows: Mean = S Xi / N Median is the middle value of a data set when the data are arranged according to increasing or decreasing value Odd numbered Data Set: Median easily picked Even numbered Data Set: Take mean of middle pair Review Example 5.1

More Related