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Statistics. Measures of Central Tendency and Dispersion. Measures of central tendency : mean, median, mode Measures of dispersion : how the data is spread out.. range, Interquartile range and standard deviation. Mary had 6 tests that averaged an 85 and then took “n” numbers of
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Statistics Measures of Central Tendency and Dispersion
Measures of central tendency: mean, median, mode Measures of dispersion: how the data is spread out.. range, Interquartile range and standard deviation
Mary had 6 tests that averaged an 85 and then took “n” numbers of test scores that averaged a 90. The average of all the tests was an 88, how many more tests did she take?