I Exploring Data

Description

Applet

A. Graphical Displays

to examine all SOCS

http://onlinestatbook.com/stat_sim/contingency/index.html

  dot plot

  stem plot

1-var stats calculator

http://bcs.whfreeman.com/ips4e/cat_010/applets/histogramIPS.html

  histogram

bin width effect

http://onlinestatbook.com/stat_sim/histogram/index.html

bin width effect

http://www.stat.sc.edu/~west/javahtml/Histogram.html

  cumulative  freq plot

http://web.thu.edu.tw/wenwei/www/cgi-bin/stat/ogive/index.html

1. Center/Spread

2. Cluster/Gaps

3. Outliers

4. Shape

B. Univariate

Use Stats Tools

http://dlippman.imathas.com/index.html#stats

1. Center

Mean vrs Median

http://www.ruf.rice.edu/~lane/stat_sim/descriptive/index.html

2. Spread

 StDev

 http://www.stat.tamu.edu/~west/applets/normaldemo1.html

3. Position

4. Boxplots

5. Units

C. Comparing

1. Center/Spread

2. Cluster/Gaps

3. Outliers

4. Shapes

D. Bivariate

1. Scatter Plots

2. Correlation/Linearity

match correlation

http://istics.net/stat/Correlations/ 

explore components of r

http://onlinestatbook.com/stat_sim/comp_r/index.html

set correlation see graph

http://www.bc.edu/research/intasc/library/correlation.shtml

3. LSRL

regression

 http://wise.cgu.edu/regression_applet.asp

4. Residual/Outliers

    Influential Point

Add influence point

http://www.stat.sc.edu/~west/javahtml/Regression.html 

5. Transformations

E. Categorical

1. Freq Table/Bar Charts

2. Two Way Tables

3. Association

Adjust Correlation  

4. Bar Charts