Graphs Bar Graphs Line graphs (connect)

– used when manipulated variable continuous (like time)

– interpolate– extrapolate

Interpreting Data

Bar and Line Graphs (DRY MIX)

– horizontal=x-axis=manipulated (or independent) variable

– vertical=y-axis=responding (or dependent) variable

– be sure to label each axis, include units– equal spacing (don’t have to start at zero)

– include title and key

– colorful and neat

Why graph on computers?

Neatness

Accuracy

Quickness

Graphs--continued

Circle (pie) graph– use protractor or computer– when you have data for all categories

to make up given topic– include label as well as % and/or

degrees for each slice– different color per slice– partial X 360°

total

OPT--M&M lab As a group, write your names on

a dixie cup, then count out 36 M&M’s.

Sort the M&M’s by color and make a data table.

Tell Mrs. McMullan how many reds you have.

Make a data table and bar graph (circle graph later) for the 36 M&M’s (do not eat any until everything is finished and checked—tomorrow?)

Part 2: make with computer (Excel)—in a couple of days