BST322 Final Independent Project.pdf

BST322 Final Independent Project.pdf - GLEN A BST322...

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GLEN A. BST322 INDEPENDENT PROJECT This frequency table arranges the data values such that the number of occurrences of “drunkeness” can be easily analyzed. “Drunkeness” is an interval variable which is categorized in 5 groups: Once or twice, never, 5-10 times, 3-5 times and 10+ times. The bar graph that follows illustrates the frequency of these categories among the 972 individuals. From the table and the graph we can draw that the mass of the group has never touched alcohol (68.2%) while the least occuring level of “drunkeness” appears to be the group that has been drunk 5-10 times. Frequency table results for drunk: Count = 972 drunkeness Frequency Relative Frequency Percent of Total 10+ times 20 0.020576132 2.0576132 3-5 times 47 0.048353909 4.8353909 5-10 times 15 0.015432099 1.5432099 Never 663 0.68209877 68.209877 Once or twice 227 0.23353909 23.353909
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GLEN A. BST322 The weight of these 972 individuals can be observed on the histogram below. Weight is a continuous variable as it is a value that has an infinite range all of which are related to the point zero. The mean, or arithmetic average, is 173.2. This is the value that is found by adding all the individual weights (summation x) and dividing that sum by the number of individuals (n). The median is the weight of the individual who lies directly in the middle of the sample. In this case
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