Driving under the influence of alcohol (DUI) is a serious offense. The following

Question

Driving under the influence of alcohol (DUI) is a serious offense. The following data give the ages of a random sample of 50 drivers arrested while driving under the influence of alcohol. This distribution is Statistical Abstract of the United States (112th Edition). 46 16 41 26 22 33 30 22 36 34 63 21 26 18 27 24 31 38 26 55 31 47 27 43 35 22 64 40 58 20 49 37 53 25 29 32 23 49 39 40 24 56 30 51 21 45 27 34 47 35 Make a stem and leaf display of the age distribution. Age of DUI Arrests Make a frequency table using seven classes. (Give relative frequencies to 2 decimal places.) Make a histogram showing class boundaries.

Explanation / Answer

Stem Leaf 1 6 8 2 0 1 1 2 2 2 3 4 4 5 6 6 6 7 7 7 9 3 0 0 1 1 2 3 4 4 5 5 6 7 8 9   4 0 0 1 3 5 6 7 7 9 9 5 1 3 5 6 8 6 3 4 Class boundaries Midpoint Frequency Relative frequency Cumulative frequency 15.5 - 22.5 19 8 0.16 8 22.5 - 29.5 26 11 0.22 19 29.5 - 36.5 33 11 0.22 30 36.5 - 43.5 40 7 0.14 37 43.5 - 50.5 47 6 0.12 43 50.5 - 57.5 54 4 0.08 47 57.5 - 64.5 61 3 0.06 50 50

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