MATH 203 Study Guide - Quiz Guide: Standard Deviation, Qualitative Property, Omron

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MATH 203 Full Course Notes
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MATH 203 Full Course Notes
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2. 10 (a) qualitative data is measured because the data given is the names of the manufacturers, not numbers on a naturally occurring scale. (b) Bitelcybernetfujian landiglintt (pararede)intelligentkwangwooomronpax tech. provencocadmusszzt electronicstoshiba tecurmetbarplot of pinpad manufacturersmanufacturersfrequencies0. 000. 050. 100. 150. 200. 250. 300. 35(c) In this graph we see that fujian landi made the most pinpad shipments, followed by the manufacturer, A pareto diagram was made because it allows the reader to see the frequencies more easily since it is arranged in decreasing order. Also the assignment said to make a pareto graph. Fujian landiszzt electronicskwangwooomronprovencocadmuscybernetbiteltoshiba tecpax tech. glintt (pararede)intelligenturmetpareto chart of pinpad manufacturersmanufacturerfrequency0. 00. 20. 40. 60. 81. 00%25%50%75%100%cumulative percentagefujian landiszzt electronicskwangwooomronprovencocadmuscybernetbiteltoshiba tecpax tech. glintt (pararede)intelligenturmetpareto chart of pinpad manufacturersmanufacturerfrequency0. 00. 20. 40. 60. 81. 00%25%50%75%100%cumulative percentage2. 42 (a) A histogram makes the comparison of data easier when they are placed side by side. It allows us to look at the distribution of one variable. We can look at the frequencies of the scores and compare them between the two years. The 2009 distribution also looks right-skewed, and it looks slightly bimodal.

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