4.1.10

Maths Skills for Science - Mean

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Maths Skills for Science - Mean

When analysing your data, you will need various maths skills. Maths calculations will help you draw conclusions from your data. You can calculate the mean.

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Mean results

  • One of the most common mathematical skills needed in science is how to calculate a mean.
  • To calculate a mean:
    • Add all the results up.
    • After adding all the results up, divide by the total number of results.
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Mean example

  • An example of calculating the mean is:
    • The results are 10 g / 12g and 11g.
    • The mean of these results would be calculated by adding 10g, 12g, and 11g.
  • The total of adding the results is divided by three (the number of results).
    • The mean of these results is 11g.
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Outliers

  • Clear outliers must be ignored when calculating the mean.
    • You can also repeat the result to change the outlier.
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Outlier example

  • An example of ignoring outliers is:
    • The results are 10g, 12g, and 25 g.
    • 25g is an outlier.
    • The mean of these results can be calculated by adding 10g and 12g.
  • The total of adding these results is divided by two (the number of results).
    • The mean of these results is 11g.

Jump to other topics

1Biology

1.1Cells, Tissues & Organs

1.2Reproduction & Variation

1.3Ecological Relationships & Classification

1.4Digestion & Nutrition

1.5Plants & Photosynthesis

1.6Biological Systems & Processes

2Chemistry

2.1Particles

2.2Chemical Reactions

2.3Atoms, Elements, Compounds

2.4The Periodic Table

2.5Materials & the Earth

2.6Reactivity

2.7Energetics

2.8Properties of Materials

3Physics

3.1Energy

3.2Forces & Motion

3.3Waves

3.4Electricity & Magnetism

3.5Matter

3.6Space Physics

4Disciplinary Knowledge

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