Data Displays
Data that can only take on certain numerical values. Such as number of pets in a household.
Discrete Numerical Data
Score with the highest frequency
Mode
A set of all members of a group which is to be studied.
Population
A set of all possible outcomes of an experiment
Sample Space
This acronym shows is a helpful reminder of the order of operations
BODMAS
Categorical Data in which order is important, for examples letter grades (A, B, C, D, E) or the likert scale.
Categorical Ordinal Data
A number whose value is significantly larger or smaller than the rest of the data.
Outlier
A subset (selected group) of a population.
Sample
The opposite of an event occurring. Shown by using an apostrophe in the probability statement.
Complement
A triangle that have all sides being the same length.
Equilateral
Categorical Data that has no important order, for example eye colour, models of cars etc
Categorical Nominal Data
Divides the data into 2 equally sized groups. Found by putting the scores in order and finding the middle number.
Median
A survey conduction on an entire population.
Census
Sum of all possible probabilities in an experiment.
1
This famous English mathematician is often credited as the inventor of calculus also had a deep interest in alchemy, spending many years of his life conducting secret experiments in the hope of discovering the fabled Philosopher’s Stone.
Sir Isaac Newton
A graphical representation which shows the frequency of a data set, has a half column gap at the start and labels in the middle of the columns.
Frequency Histogram
Mean
A dataset whose scores are grouped more to the higher scores.
Negatively Skewed Data
Formula used to find the probability of an event
Favourable divided by total.
According to the film The Hitchhiker’s Guide to the Galaxy, this number is associated with life, the universe, and everything.
42
A line graph showing the frequency of a dataset. It usually connects the middle of the column in a histogram and starts and ends of the x-axis (creating a closed shape).
Frequency Polygon
When an outlier exists this measure of centre is a less reliable measure of centre.
Mean
A dataset which has 2 modes.
Bimodal
Found by multiplying the probability by the number of trials.
expected number of occurrences.
In the famous Netflix show Stranger Things, the young characters frequently refer to this branch of mathematics as it relates to an alternate dimensions, which they call the upside down.
Quantum Mechanics