Mathematical Literacy
right prism – a prism whose lateral sides are perpendicular to its base. right pyramid – a pyramid that has its vertex directly above the centre of its base. rotation – a transformation under which a point or shape is rotated (turned) around a fixed point sample – in statistics, a group of data chosen from all the possible data. scatter plot – a graph using a pair of x-y axes to represent bivariate data, each bivariate element being plotted at a position that represents its pair of values; often accompanied by a line of best fit for the data. significant figures – the number of digits in a number, starting from the first non-zero digit and including final zeros (e.g. 0,0012340 has 5 significant figures). standard deviation – a measure of the spread of statistical data given by the square root of the variance of the data. symmetry – usually refers to bilateral symmetry, or the property which a plane figure has of one section of the figure being the reflection of the other in a line of symmetry. tesseleation – a covering of the plane with shapes, often polygons and in a repetitive manner. translation – a transformation whereby a figure is reproduced at a different location by sliding it from the original location. tree diagrams – a diagram in which the possible outcomes of trials involving one or more events are indicated by line segments. trial – each repetition of a statistical experiment. univariate data – one-dimensional data; any quantity or attribute whose value varies from one observation to another gives rise to univariate data, which may be qualitative or quantitative. variance – a measure of the spread of data in a sample or population involving the squares of the deviations of data values from the mean.
72