October 12, 2015 (2.3 in your books)

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Presentation transcript:

October 12, 2015 (2.3 in your books) Graphs October 12, 2015 (2.3 in your books)

Meme Moment

Scientist of the Day

Youyou Tu Won Nobel Prize with 2 others last week William C. Campbell Satoshi Omura Isolated artemisinin (malaria drug) from traditional Chinese medicine 2000 combos tried Other 2 won for ivermectin (river blindness) Family killed in Cultural Revolution

More Stuff about Sig Figs If you are using a conversion factor like “1000 g/ 1 kg” you have unlimited sig figs If you are using a counting number like “2 people,” you have unlimited sig figs

Anomalous Data Sometimes you make a data set and one number looks really weird This is anomalous data Anomalous data is useful – it can tell you if your equipment isn’t working right, or maybe you forgot to control for a variable If your averages and percent error are strange, look for anomalous data Graphs can help you spot anomalous data!

Graphs Graph: a picture of data that displays and compares information Axis/Axes: the straight lines in a graph that you plot data on *Outlier: a piece of data that doesn’t “fit” – often anomalous data Not this kind of axes. Not these axes

Types of Graphs Brainstorming!

Types of Graphs Bar graph Line graph Circle graph/pie chart Vertical or horizontal Can have more than one series at a time (use a legend/key if you have more than 1) Good for counting and comparisons Line graph Good for tracking changes Circle graph/pie chart Good for comparing parts of a whole Each section has to add up to 100%

Features of a Good Bar/Line Graph Title X-axis Y-axis X-axis subtitle Y-axis subtitle Units Key/legend Scale

Features of a Good Circle Graph/Pie Chart Title Labels Key Different colors Adds up to 100% What’s missing from this graph?

What does this chart tell you?

Questions Any questions about the slides? Any new questions?