Math 123 Quantitative Reasoning Homework 7 - Sec 8 Life Expectancy and Descriptive Statistics 1. The total points scored in the games of an NBA playoff series: 195 176 215 200 189 232 201 Mean = _______________ (round to two decimal places) Median = ______________ Mode = ________________ (enter N/A if the mode does not exist) 25th Percentile = ____________ 75th Percentile = ____________ Maximum = _____________ Minimum = _____________ Range = ________________ 2. Body temperature measured in degrees Fahrenheit of randomly selected normal and healthy adults: 98.6 98.6 98.0 99.0 98.4 98.4 98.4 98.7 98.9 98.8 Mean = _______________ (round to two decimal places) Median = ______________ Mode = ________________ (enter N/A if the mode does not exist) 25th Percentile = ____________ 75th Percentile = ____________ Maximum = _____________ Minimum = ______________ Range = _________________ 3. Weights measured in grams of randomly selected M&M plain candies: 0.957 0.912 0.925 0.886 0.920 0.958 0.915 0.914 0.947 0.939 0.84 Mean = _______________ (round to four decimal places) Median = ______________ Mode = ________________ (enter N/A if the mode does not exist) 25th Percentile = ____________ 75th Percentile = ____________ Maximum = _____________ Minimum = ______________ Range = _________________ Math 123 Quantitative Reasoning Homework 7 - Sec 8 Life Expectancy and Descriptive Statistics 4. Professor Ivy has the following scores on her final exams: 97 88 66 55 89 72 94 32 84 89 72 76 77 Mean = _______________ (round to two decimal places) Median = ______________ Mode = ________________ (enter N/A if the mode does not exist) 25th Percentile = ____________ 75th Percentile = ____________ Maximum = _____________ Minimum = ______________ Range = _________________ Questions 5-12. Below is data from the Earth Policy Institute showing the top 10 countries' fossil-fuel carbon dioxide (CO2) emissions during 2012. Country CO2 Emissions (tons of carbon dioxide) 2012 population China 8,782,000,000 1,359,750,000 United States 5,144,000,000 316,597,000 India 2,185,000,000 1,233,460,000 Russia 1,646,000,000 143,400,000 Japan 1,232,000,000 127,310,000 Germany 733,000,000 80,523,700 Iran 583,000,000 76,876,000 South Korea 576,000,000 50,219,669 Indonesia 535,000,000 237,641,326 Canada 528,000,000 35,141,542 Emissions per Capita 5. Calculate the per capita emissions for each country. Fill your answers in the table above. (round to two decimal places) 6. Find the mean CO2 emissions of the top 10 countries. (round to the nearest whole number) 7. Find the mean per-capita emissions among the top 10 nations. (round to three decimal places) Math 123 Quantitative Reasoning Homework 7 - Sec 8 Life Expectancy and Descriptive Statistics 8. Find the median per-capita emissions among the top 10 nations. (round to two decimal places) 9. Are total emissions or per-capita emissions a better gauge when comparing the CO2 emissions of various countries? Why? 10. Which measurement (mean or median) would be used by an environmentalist to support the position that CO2 emissions per capita are too high