Mathss

Graphical show of information and measures of central tendency LECTU RE 2 Introduction ? Summaries of selective information atomic function 18 presented in the results naval division of incubates, either in graphs, tabulates. ? The presentation method used depends on the data and the objectives of your study. ? Graphs are usually label and figures and both graphs and circuit boards are played Introduction ? When deciding on how to present data, illustrate the more or less raise or outstanding results (aspects of your report which you want your reader to counseling on) ? Avoid having overly many pages of graphs or one put over after other ? Both figures and tables should always have appropriate (brief) title and be labeled so that they stand alone ? When displaying your graphs and tables, always report your synopsis statistics e.g. mean value, n, and one of the measures of dispersion; SD, Variance, or 95% cartel interval Frequency Table ? A table with one column leaning events categories or values of the variable quantity (x) and the other column listing their individual frequencies (f) or the amount of times the values occur ? select the following data for the levels of sulphur dioxide in the rainfall (ml/ liter of rainwater): 0.7; 0.9; 0.9; 0.7; 0.8; 0.7; 1.0; 0.8; 0.8; 0.9; 0.7; 1.2; 0.6; 0.5; 0.8; 1.0; 1.0; 0.8; 0.6; 0.

8 ? ?f =n = 20 Frequency table x 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 f 1 2 4 6 3 3 0 1 Frequency table ? Where the data may be a bouffant number of values, display data in classes of equal s izes e.g. 0.40-0.49; 0.50-0.59; 0.60-0.69 an! d so forth This is called group absolute frequency distribution ? Number of classes (Generally recommended to use 5-20 classes) ? Width of classes: Related to number of classes Approx. class width = [Largest Data value- Smallest ]/Number of classes Frequency table ? whitethorn reveal the following: ? The range of frequencies observed ? round where most points lie ? Variability among frequencies- do all values listed in...If you want to have got a full essay, order it on our website: OrderCustomPaper.com

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