Question

6. The following data set reports basic information on the world's seven most populous countries: * global rank in population * 2010 estimated population * per capita GDP (in US dollars) * temperature (in Celsius) of largest city on April 19, 2013 * the continent (Asia is 2, Latin America is 6, North America is 5) * percent of population living in urban areas). Table 1: Profiles of the World's Seven Most Populous Countries | Country | Rank | Population | GDP | Temperature | Continent | Urban | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Bangladesh | 7th | 144,000,000 | $1,700 | 34 degrees | 2 | 28% | | Brazil | 5th | 204,000,000 | $10,800 | 24 degrees | 6 | 87% | | China | 1st | 1,350,000,000 | $7,600 | 18 degrees | 2 | 47% | | India | 2nd | 1,200,000,000 | $3,500 | 30 degrees | 2 | 30% | | Indonesia | 4th | 246,000,000 | $4,200 | 32 degrees | 2 | 44% | | Pakistan | 6th | 188,000,000 | $2,500 | 32 degrees | 2 | 36% | | US | 3rd | 314,000,000 | $47,200 | 23 degrees | 5 | 82% | a. Is any variable in this data set a nominal variable? If so, which? b. Is any variable in this data set an ordinal variable? If so, which? 7. Suppose that the above data were collected for the purpose of learning about the world's seven most populous countries, and only those countries. In other words, the above countries define all the countries in which we are interested. If we were to develop summary measures on some of the variables (for example, the average percent of people living in urban areas), would we call that average a sample statistic or a population parameter? 8. Shown below are the heights (in inches) of the first round players who were the first round picks by the National Basketball Association professional teams in 2009. 72, 72, 73, 74, 74, 74, 74, 74, 75, 75, 76, 76, 77, 77, 77, 77, 78, 78, 80, 80, 80, 81, 81, 81, 81, 82, 82, 82, 84, 86 a. Construct a dot chart (dotplot) of the heights of these players in the space below. b. Use the dot chart to uncover the shortest and tallest players. c. What is the most common height and how many players share that height?

          6. The following data set reports basic information on the world's seven most populous countries:

* global rank in population
* 2010 estimated population
* per capita GDP (in US dollars)
* temperature (in Celsius) of largest city on April 19, 2013
* the continent (Asia is 2, Latin America is 6, North America is 5)
* percent of population living in urban areas).

Table 1: Profiles of the World's Seven Most Populous Countries

| Country | Rank | Population | GDP | Temperature | Continent | Urban |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| Bangladesh | 7th | 144,000,000 | $1,700 | 34 degrees | 2 | 28% |
| Brazil | 5th | 204,000,000 | $10,800 | 24 degrees | 6 | 87% |
| China | 1st | 1,350,000,000 | $7,600 | 18 degrees | 2 | 47% |
| India | 2nd | 1,200,000,000 | $3,500 | 30 degrees | 2 | 30% |
| Indonesia | 4th | 246,000,000 | $4,200 | 32 degrees | 2 | 44% |
| Pakistan | 6th | 188,000,000 | $2,500 | 32 degrees | 2 | 36% |
| US | 3rd | 314,000,000 | $47,200 | 23 degrees | 5 | 82% |

a. Is any variable in this data set a nominal variable? If so, which?
b. Is any variable in this data set an ordinal variable? If so, which?

7. Suppose that the above data were collected for the purpose of learning about the world's seven most populous countries, and only those countries. In other words, the above countries define all the countries in which we are interested. If we were to develop summary measures on some of the variables (for example, the average percent of people living in urban areas), would we call that average a sample statistic or a population parameter?

8. Shown below are the heights (in inches) of the first round players who were the first round picks by the National Basketball Association professional teams in 2009.
72, 72, 73, 74, 74, 74, 74, 74, 75, 75,
76, 76, 77, 77, 77, 77, 78, 78, 80, 80,
80, 81, 81, 81, 81, 82, 82, 82, 84, 86

a. Construct a dot chart (dotplot) of the heights of these players in the space below.
b. Use the dot chart to uncover the shortest and tallest players.
c. What is the most common height and how many players share that height?

6. The following data set reports basic information on the world's seven most populous countries:

* global rank in population
* 2010 estimated population
* per capita GDP (in US dollars)
* temperature (in Celsius) of largest city on April 19, 2013
* the continent (Asia is 2, Latin America is 6, North America is 5)
* percent of population living in urban areas).

Table 1: Profiles of the World's Seven Most Populous Countries

| Country | Rank | Population | GDP | Temperature | Continent | Urban |
| :— | :— | :— | :— | :— | :— | :— |
| Bangladesh | 7th | 144,000,000 | 1,700 | 34 degrees | 2 | 28% |
| Brazil | 5th | 204,000,000 |10,800 | 24 degrees | 6 | 87% |
| China | 1st | 1,350,000,000 | 7,600 | 18 degrees | 2 | 47% |
| India | 2nd | 1,200,000,000 |3,500 | 30 degrees | 2 | 30% |
| Indonesia | 4th | 246,000,000 | 4,200 | 32 degrees | 2 | 44% |
| Pakistan | 6th | 188,000,000 |2,500 | 32 degrees | 2 | 36% |
| US | 3rd | 314,000,000 | 47,200 | 23 degrees | 5 | 82% |

a. Is any variable in this data set a nominal variable? If so, which?
b. Is any variable in this data set an ordinal variable? If so, which?

7. Suppose that the above data were collected for the purpose of learning about the world's seven most populous countries, and only those countries. In other words, the above countries define all the countries in which we are interested. If we were to develop summary measures on some of the variables (for example, the average percent of people living in urban areas), would we call that average a sample statistic or a population parameter?

8. Shown below are the heights (in inches) of the first round players who were the first round picks by the National Basketball Association professional teams in 2009.
72, 72, 73, 74, 74, 74, 74, 74, 75, 75,
76, 76, 77, 77, 77, 77, 78, 78, 80, 80,
80, 81, 81, 81, 81, 82, 82, 82, 84, 86

a. Construct a dot chart (dotplot) of the heights of these players in the space below.
b. Use the dot chart to uncover the shortest and tallest players.
c. What is the most common height and how many players share that height?

Added by Jee S.

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