oRadar- spider web thing.Can you interpret it?oBubbles—we all love bubbles.Love bubbles. When can you tell statistical significancefrom this chart? Can you at all?oScatterplots—read about them.When should you use a trend line? What truly is a trend line? When don’t youreally need one?oWhat does a box and whisker look like? Meow.StatsoR-squared:What is it specifically?It gives us a piece of information that is important.What is that information?oMake sure you understand the difference among R, R^2, and a correlation coefficient. Acorrelation coefficient tells us about linear dependence. Focus on correlation, not lineardependence.R^2 gives us a picture of ‘fit’.What is R? Use math.oF-distribution- we’re comparing more than one group via a mean.Remember that thereare numerators and denominators (it’s a ratio).When is the F-ratio significant? i.e. canyou use the table?oNull hypothesis—remember what I said? Null=nothing.That’s your hint.oPearson’s coefficient table—I think that you should be able to read it.oType I and Type II errors—know what they mean.Not too difficult.Random:oNet profit margin—basic.Just calculate it.