Matthew

Statistical Glossary

__** Mean: **__ the mean is the average fo the data series for example: 2 4 7 9 4 2 46 5 you would add them together and divide by the number of 9.625 **__ Cluster: __**A cluster is a small group or bunch of something Bar Graphs __** : There are four types of bar graphs. Histogram, column, vertical and double bar graphs. **__ Strip Graph __** : a strip graph shows proportions or percentages as part of a strip **__ Inter quartile range: __**It is the middle 50%(25 to 75%) of a series of data. **__ Patterns in data: __**groups of data that are in a pattern. **__ Relationships in data: __**is a connection between the data. **__ Frequency table : __**shows the frequency of data in a group. **__ Conclusions: __**the end statement in an investigation **__ Generalisations: __**a principle, a theory etc. with general applications
 * __ Outliers: __**Outliers are observations that are distant from the rest data.
 * __ Trends: __**Trends is a statistical technique to aid interpretation of data.
 * __ Dot Plot: __**A Dot Plot is a graph that shows dots instead of columns
 * __ Tally Chart: __** A Tally chart is a chart that you use to record data before putting it on a graph.
 * __ Pictographs: __**Are graphs that show pictures instead of bars or columns**__
 * __ Histograms: __** A histogram Is a type of bar graph that shows continuous data.
 * __ Pie Graph __** : A pie graph shows percentages of the data in a circular graph.
 * __ Steam and leaf graph __**A steam and leaf graph has a stem and the numbers that come off the stem are called the leaves
 * __ Scatterplot : __**is a graph that shows data that is placed on a co-ordinate table
 * __ Box and Whisker graphs: __**are used to find the median and upper and lower quartiles.
 * __ Line Graph: __** is used to show measurements like height and weight
 * __ Mean : __**Is used to show the average number in a series of data
 * __ Median: __**Is the number in the middle in an ordered series of data
 * __ Mode: __**Is the most occurring number in a series of data
 * __ Range: __**Is the difference between the highest and lowest numbers
 * __ Implications: __**the conclusion that can be drawn from something, although it is not explicitly stated.
 * __ Variables: __** are things that change suddenly and unpredictably.
 * __ Sample : __**a small group of data
 * __ Surveying: __**Surveys are used to gather a group of data.