Ninja Graphing

Histograms

Difference ???

Histogram Bar Graph

•Histograms are very similar to simple bar graphs with one exception--- the bar represents a range of values rather than one single value.

•intervals must all be of equal magnitude

Histograms

Brook silverside

What’s Wrong?

What does the rubric mean?

• Scaled to fit paper = margins on all sides are less than 5 cm (not exactly but less than)

• Each square on the graph paper should have the same value for each axis (for example x- axis each box could be 5 units/box and y axis could be 25 units/ box) but you cannot change values along the axis

Whats Wrong?

Whats Wrong?

Scaled to fit Paper

• How much space is left on paper?

Ninja Graphing

Line Graphs

Variables / which axis?

• Dependent variable – what you measure• Independent variable – what is changedIdentify the dependent and independent variable

Amount of Ethylene

Wine sap Apples-days to maturity

Golden Apples : days to maturity

Gala Apples: Days to Maturity

10 14 14 15

15 12 12 13

20 11 9 10

25 10 7 9

30 8 7 8

The Hypothesis

• If independent variable, then dependent variable.

• Write a hypothesis for this problem.

X or Y axis

• Label the x and y axis correctly

Extrapolation