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Published byAvis Melton Modified over 9 years ago
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Making sense of data We got to deal with some Math here folks
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Measures of Central Tendency
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Measures of dispersion 3 types: Range, Interquartile Range & Standard Deviation
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Interquartile Range Shows the middle 50% of a set of scores
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Standard Deviation
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Put your data into graphs Bar Graphs
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Put your data into graphs Histograms are different from bar graphs because they are used for continuous data (test scores)
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Put your data into graphs Frequency polygons is similar to a histogram as it shows continuous data but its advantage is that it can graph 2+ frequency distributions
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Statistical Significance Probability (p) concerns the degree of certainty that an observed difference or relationship between 2 sets of data is a real difference rather than having occurred by chance. eg. If I flip a coin 100 times and it lands on heads 60 times A result is considered to be significant if it occurs 95% of the time, p 0.05 The lower the probability that it occurred by change the greater the significance
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