TABLE 18-2
a Political Pollster Randomly Selects a Sample

question 77

Multiple Choice

TABLE 18-2
A political pollster randomly selects a sample of 100 voters each day for 8 successive days and asks how many will vote for the incumbent. The pollster wishes to construct a p chart to see if the percentage favoring the incumbent candidate is too erratic.
$\begin{array}{cc}\hline\text { Sample }&\text { Number Favoring}\\\text { (Day) }& \text { Incumbent Candidate }\\ \hline1 & 57 \\2 & 57 \\3 & 53 \\4 & 51 \\5 & 55 \\6 & 60 \\7 & 56 \\8 & 59\\\hline\end{array}$



-Referring to Table 18-2, which expression best characterizes the p chart?

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Definitions:

Paleozoic Era

A geological time period that lasted from about 541 to 252 million years ago, marked by significant evolutionary developments, including the rise of fish, amphibians, and reptiles.

Cenozoic Era

Span of geologic time extending from 66 mya to the present; marked by diversification of mammals, birds, insects, and flowering plants. Divided into Paleogene (66–23 mya), Neogene (23–2.6 mya), and Quaternary (2.6 mya to present) periods.

Chemical Evolution

The gradual process by which simple chemical compounds give rise to more complex molecules, eventually leading to the emergence of life.

Brachiate Primates

Primates that move by swinging with their arms from one handhold to another, also known as brachiation.