hw1 - Daniela Sorokko ILRST 212 Homework #1 Chapter 2:...

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Daniela Sorokko ILRST 212 Homework #1 Chapter 2: Oscars The two variables are names of Oscar winners (categorical) and ages of Oscar winners when they received the award (quantitative). The quantitative variable is measured in years. High way bridges Length of maximum span (feet): quantitative Number of vehicle lanes: quantitative Toll bridge (yes or no): qualitative Average daily traffic: quantitative Condition of deck (good, fair, or poor): qualitative Bypass or detour length (miles): quantitative Route type (interstate US, state, country, or city): qualitative Chapter 3: Cause of death: Yes it is reasonable to conclude that heart and respiratory disease caused about 38% of deaths in 1999. 26.3% of deaths were from unlisted causes Teens and Technology: The pie chart does not abide by the area principle. It split up the different technologies used by students into roughly equal slices while the actual vary greatly. On the pie chart shown, however, 46% looks greater than 85%. After High School a) What percentage of all these graduates joined the military? Total of graduates who joined the military divided by total graduates 56/1415 x 100 = 4% b) What percentage of these students graduated in 1970? Amount of graduates who joined the military in 1970 divided by total amount of graduates who joined the military 18/56 x 100 = 32% c) What percentage of the 1970 graduates joined the military? 18/601 x 100 = 3% d) Of the students who joined the military what percent graduated in 1970? Amount of graduates who joined the military in 1970 divided by the total amount of graduates who joined the military 18/56 x 100 = 32%
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e) What is the marginal distribution of post-graduation activities (PGA) Class 1959 1970 1980 Total Cont. educ. 197(59%) 388 (64.5%) 320 (66.5%) 905 employed 103 (31%) 137 (22.7%) 98 (20.4%) 338 PGA in the military 20 (6%) 18 (3%) 18 (3.7) 56 other 13 (4%)
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This note was uploaded on 09/28/2008 for the course ILRST 2120 taught by Professor Vellemanp during the Fall '06 term at Cornell University (Engineering School).

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hw1 - Daniela Sorokko ILRST 212 Homework #1 Chapter 2:...

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