# Problem 2 or 4 classify each of the following

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Problem 2 or 4: Classify each of the following variables as qualitative or quantitative. If quantitative, as discrete or continuous: a)occupation; b)region of residence; c) weight; d)age; e)number of automobiles owned. a) qualitative. b) qualitative. c) quantitative. continuous. d) quantitative. continuous. e) quantitative. discrete. Problem 3 or 5: A study on college students found that the men had an average weight of about 66 kg and an SD of about 9 kg. The women had an average weight of about 55 kg and a SD of 9 kg. (1) Find the averages and SDs, in pounds (1 kg=2.2 lb). (2 pts) (2) Just roughly, what percentage of the men weighed between 57 kg and 75 kg? 1
0-5 5-15 20-25 30-35 45-55 55-65 65-75 75-over Age % Population per age 0 1 2 3 4 5 6 7 Figure 1. Histogram of the population distribution by age. (1.5 pt) (3) If you took the men and women together, would the SD of their weights be smaller that 9 kg, just about 9 kg? Why? (1.5 pt) (1) . Averages are 145.2 lb and 121 lb for men and women separately. SDs are 19.8 lb for men and women respectively.