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Data Analysis (central tendency (median (1st arrange the numbers from…
Data Analysis
central tendency
median
1st arrange the numbers from least to greatest. 2nd find the middle number, if there are two middle numbers find the mean of the middle 2.
2 4 6 8 9 , 6 is the middle number so 6 is the median
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mode
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2 3 3 4, 3 shows up the most
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mean
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2 4 6, 4+6+2= 12, 12/3= 4
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Box Plots-Quartiles
1: arrange the numbers from least to greatest. 2: find the mean of the whole thing. 3:find the median of the upper and lower halfs.
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Histograms
Put your information on a number line like from 0-10 or 11-20 then shade in how many you have in that group.
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