CALS 002/085 Lecture Eight, March 23-27, 2009

ATTENDANCE Gender, Age

ANNOUNCEMENTS & ASSIGNMENTS:

EXAM NEXT WEEK!:   Be on time or lose points. 

Preview of Lab Next Two Weeks:
This week:  Lab 8 Web Page II: Links, image tags, Cascading Style Sheets
Next Week: Final Lab Project

Reading:  Keyboards, How roller mice work,  How roller and optical mice work, How touch pads work, How active-matrix screens work.  
Text Sections 11-13 (pages 64-87)

Website of the Week:  Alternative News Sites How to Evaluate Web Site Credibility What Peer Review Means, Hans Rosling's TED talk, and Gapminder.org software site

LECTURE:

Review Graph Practice Two

        Demographic Transitions: One, Two

        Orchards

        Election Results

        Deficit

Descriptive Statistics: Handout

    Mean: the numerical average, used with quantitative data.

    Mode: the most often observed value, used with qualitative as well as quantitative data.

    Median: The mid-point or middle, used with quantitative continuous data.

    Variation: Often more important than the Mean and shown in: Histogram,
                    Inter-quartile range, Box & Whiskers plot, Variance,
                    & Standard Deviation.

Text coded as binary

Graph Practice Three