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...simple graphic, which displays certain summary statistics of a set of data. Boxplots are particularly useful for assessing quickly the location, dispersion, and symmetry or skewness of a set of data, and for making comparisons of these features in two or more data sets. Boxplots can also be useful for drawing attention to possible outliers in a data set. The other topic,...

...simple problems wrong if numbers are involved. I am aware that presumed difficulties with maths prevent me from attempting certain aspects of the course. Basic skills could help my confidence, though I feel it may be too late to start. I am aware of an in-built resistance to doing anything involving figures! Why did it sound as if it would be useful? This may be more...

...simple tables express, manipulate and compare very small numbers...The Moon: 1 Observing the Moon - Activity 1 Timing: 0 hours 30 minutes Try to make out features on the surface of the Moon, even if you have no optical aid available. If you have the use of a pair of binoculars you will probably be surprised by how much you can see (especially if you avoid full Moon). A...

...simple electronic circuits see how signals can be represented in the time and frequency domains for Fourier analysis record, analyse and filter audio signals to improve their fidelity...An introduction to electronics: 1 Electronics everywhere - Electronics is the art of controlling the movement of electrons in order to design components and circuits that are put together...