The Following Table Provides Information on the Number of Billionaires

question 24

Essay

The following table provides information on the number of billionaires in a country and the continents on which these countries are located. $$\begin{array} { l | l | c } \text { Nationality } & \text { Contin ent } & \text { Number of Billionaires } \\\hline \text { United States } & \text { North America } & 426 \\\text { Brazil } & \text { South America } & 38 \\\text { Russia } & \text { Europe } & 105 \\\text { Mexico } & \text { North America } & 37 \\\text { India } & \text { Asia } & 54 \\\text { Turkey } & \text { Europe } & 40 \\\text { United Kingdom } & \text { Europe } & 31 \\\text { Hong Kong } & \text { Asia } & 39 \\\text { Germany } & \text { Europe } & 57 \\\text { Canada } & \text { North America } & 28 \\\text { China } & \text { Asia } & 120\end{array}$$
a. Sort the countries from largest to smallest based on the number of billionaires. What are the top five countries according to the number of billionaires?
b. Filter the countries to display only the countries located in North America.

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Definitions:

Blood Capillary

The smallest blood vessels in the body, connecting arterioles to venules and facilitating the exchange of water, oxygen, carbon dioxide, and many other nutrient and waste chemical substances between blood and surrounding tissues.

Vena Cava

Large systemic vein that returns blood to the right atrium of the heart in tetrapods; either the superior or inferior vena cava.

Antihistamine

A type of medication that blocks histamine receptors and is used to treat allergic reactions by reducing symptoms like nasal congestion, sneezing, or itching.

Histamine

Substance, produced by basophils in blood and mast cells in connective tissue, that causes capillaries to dilate.