Question

In a biology assignment what does it mean to interpret a graph and what does it mean to analyse a graph?

Answer 1

Answer:

The easiest way to organize data is by putting it into a data table. In most data tables, the independent variable (the variable that you are testing or changing on purpose) will be in the column to the left and the dependent variable(s) will be across the top of the table.

Be sure to:

Label each row and column so that the table can be interpreted

Include the units that are being used

Add a descriptive caption for the table

Example

You are evaluating the effect of different types of fertilizers on plant growth. You plant 12 tomato plants and divide them into three groups, where each group contains four plants. To the first group, you do not add fertilizer and the plants are watered with plain water. The second and third groups are watered with two different brands of fertilizer. After three weeks, you measure the growth of each plant in centimeters and calculate the average growth for each type of fertilizer.

The effect of different brands of fertilizer on tomato plant growth over three weeks

Treatment Plant Number

1 2 3 4 Average

No treatment 10 12 8 9 9.75

Brand A 15 16 14 12 14.25

Brand B 22 25 21 27 23.75

Scientific Method Review: Can you identify the key parts of the scientific method from this experiment?

Independent variable – Type of treatment (brand of fertilizer)

Dependent variable – plant growth in cm

Control group(s) – Plants treated with no fertilizer

Experimental group(s) – Plants treated with different brands of fertilizer

Explanation:

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