The Table Below Lists the Populations, in Thousands, of Several

question 66

Multiple Choice

The table below lists the populations, in thousands, of several rural western counties. What is the mean population?

$\begin{array} { c c } \hline \text { County } & \text { Population (thousands) } \\\hline \text { Aldridge } & 28 \\\text { Cleveland } & 22 \\\text { McCarthy } & 11 \\\text { Pope } & 16 \\\text { Sorrell } & 26 \\\text { Wilson } & 21\end{array}$

• A) 17 thousand
• B) 20.7 thousand
• C) 21.5 thousand
• D) 19.5 thousand

---

Definitions:

Ectoderm

Outermost of the three germ layers of an embryo.

Mesoderm

The middle layer of an embryo in early development, which gives rise to muscles, bones, and the circulatory system.

Tooth

A tooth is a hard, calcified structure in the jaws of many vertebrates, used for cutting, crushing, or grinding food.

Placenta Previa

A pregnancy condition where the placenta covers the cervix, potentially causing complications during delivery.