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updated solution_PRACTICEFINAL

# updated solution_PRACTICEFINAL - Practice Final Part 1...

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Practice Final Part 1: Organize, describe and interpret data sets in meaningful tables and graphs, and evaluate measures of central tendency and variation. The annual oil consumption per person (in barrels) is given below for 13 different countries. a. Find the mean, median and mode of this data. mean = 12 – average of all median = 12 – middle of term, in numerical order modes = 12 and 26 – most occurs b. Find the range and standard deviation of this data. range = 25 -- highest minus lowest sample standard deviation = 8.0208 (1-12)^2+(2-12)^2+(4-12)^2…… til (26-12)^2 (LAST NUMBER DUH!) [divided by the total number of boxes/category MINUS 1] AND SQUARE ROOT ENTIRE!! c. Construct the five number summary and the box and whisker plot for the scores. Identify each of the five summary numbers. Five number summary: Minimum = 1 First Quartile = 5.5 Median = 12 Third Quartile = 17 Maximum = 26 Indi a Chin a Braz il Mexic o Russi a S.Kore a Ital y Franc e Britai n Germa ny Japa n Canad a U S 1 2 4 7 8 18 12 13 11 12 16 26 26

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updated solution_PRACTICEFINAL - Practice Final Part 1...

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