William

**__Statistics glossary__** A __**cluster**__ is a group of data in one area. A cluster would usually be found in dot plots. An __**outlier**__ is data that is away from the rest of the data. A **__trend__** is a group of statistics that are the same. These are most commonly found in bar graphs. __ **Multivariate data** __ is data that has more than one variables. __** Variables **__ are data that is same topic but different surveying item. A __**sample**__ is a piece of data that is used as a practice. __** Surveying **__ is when you are recording your data. __**Patterns**__ in data is where you can find groups of data that are in a pattern. A __**relationship**__ in data is when there is a some "connection" between to pieces of data. A __**tally chart**__ keeps a tally of how many things you are doing statistics on. A __**frequency**__ table shows the frequency of the data. A __**pictograph**__ is a graph used in pictures instead of bars. A __**bar graph**__ is a graph is where the data is shown in bars. thre are four types of bar graphs, column graph, double bar graph, vertical bar graph and hystogram. A __**histogram**__ is the only bar graph thats is joined at every bit of data. A __**strip graph**__ is a graph that is a strip that is used for dividing data. A __**pie graph**__ is a circle where it is seperated into data for each specific thing. You would use a pie graph when doing data on eye colour. A __**dot plot**__ is a graph that uses dots for a specific thing eg. progress in class. Dot plots usually have clusters. A __**stem and leaf graphs**__ have a stem and numbers come off the stem. A __**scatterplot**__ is data that is placed on a graph using co-ordinates. A __**box and whisker graph**__ is used to find out the upper and lower quartiles. A __**line graph**__ or time series graph is most likely to be used for time measurement. A line graph would be used in data about height and weight. The __**mean**__ is all the numbers added up and then divided by the amount of numbers in the series. The __**median**__ is the middle number, when all the numbers are put in numerical order. The __**mode**__ is the value that is surveyed the most. The __**range**__ is when the numbers are put in numerical order and the difference between the lowest and highest numbers.