STA1DCT Assignment 1 Model Answers 1. B, C, D, are the correct statements. 2. (a) 1.7x 1021. (b) 1.7E+21. (c) 1 × 10100. (d) 70 since 70! gives 1.1979E+100 by using =FACT(70). Name Died at 27? Amy Winehouse John Lennon 7 Jonathan Brandis 3. River Phoenix 7 Andrés Escobar James Dean 7 Napoleon Bonaparte Was a famous musician or actor? A member of the 27 club? 7 7 7 Index Are High or Low values considered good? Australia 7 7 7 7 7 Ranks Greece Portugal United States Income inequality Low 1 Unemployment rate Low 1 Level of Democracy High 1 Gallup Global Wellbeing Index High 1 Life Expectancy at Birth High 1 Prison Population (per 100,000) Low 3 Math Scale Score High 1 Science Scale Score High 1 4 2 3 4 3 4 3 3 4 2 3 1 2 4 2.5 3 Table 1: Completed table for Question ??. 4. (a) See Table 1. (b) See Table 1. (c) Total sum of ranks for Australia = 10 Total sum of ranks for Greece = 24 Total sum of ranks for Portugal = 23.5 Total sum of ranks for the United States = 22.5 4 2 2 2 4 4 2.5 2 (d) By these indices and ranking system, Greece is the worst performer because it has the highest sum of ranks. 5. We have 2000! 2!1998! 2000 × 1999×1998! 2000 × 1999 =1000×1999=1,999,0000. = 2!1998! 2