The table shows the worlds wealthiest countries by GDP and GDP per capita in 2008 A. Discuss the difference between the two sets of data presented and explain why the countries listed differ between the two lists.
B. explain what the first set of data suggest about the geographic distribution of wealth in the world. Be sure to identify the regions in which the wealthiest nations are located and to use your knowledge of developed and less developed regions
C. explain what the second set of data suggest about the distribution of girls in the countries listed. Use your knowledge of developed and less developed regions.

Why is it essential to operationally define the variables in a study?

Lunches in us high schools are lacking adequate nutritional value. the menus have become increasingly varied over the past two decades, and they are varied to a fault. now high school students can choose between healthy main dishes and "junk food" items offered à la carte on the school menu. milkshakes and fries are often the lunch of choice for america’s youth. fourteen-year-old alira sanson from grand rapids, michigan, admits, "i love my high school's menu. it is much better than middle school food. i eat a giant chocolate chip cookie and a bag of chips for lunch every day—because i can." the middle school menu alira refers to is the government-regulated hot lunch mandated in elementary and middle schools across the nation. lunches at the high school level are often under site-based management, and food service officials are under pressure to provide food that sells. this pressure renders unhealthy choices, and the resulting menus are detrimental to students. what is the topic of this passage? a. high school food is better than middle school food. b. high school students can choose their lunches, but middle school students cannot. c. a comparison of hot lunches in the united states d. the nutritional value of high school lunches

Professor king finds out that the results of her study on visual and auditory stimuli and activity in the right hemisphere of the brain are statistically significant. what does it mean when the results of a study are statistically significant?