Seven of the ten largest cities in the world are in the Eastern Hemisphere (including the largest: Tokyo, Japan) and three are in the Western Hemisphere. Table 1.3 shows the populations, in millions of people, for these cities.

(a) How many cases are there in this dataset? How many variables are there and what are they? Is each categorical or quantitative?

(b) Display the information in Table 1.3 as a dataset with cases as rows and variables as columns.

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Table 1.3 Population, in millions, of the world's largest cities Eastern hemisphere: Western hemisphere: 37, 26, 23, 22, 21, 21, 21 21, 20, 19