Ethan


 *  ETHANS PAGE **

\ 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 variable. 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. There 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 plot 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.