A Poll of 120 Ithacans Found That 30 Had Visited

question 17

Multiple Choice

A poll of 120 Ithacans found that 30 had visited the Museum of the Earth, and that 80 had been to Home Depot. If it appeared that going to Home Depot and going to the Museum of the Earth were independent events, how many of those polled had been to both? $\begin{array}{lr|c|c|c} & &{\text { Museum }} & \\& & \text { Yes } & \text { No } & \text { Total } \\\hline \text { Home } & \text { Yes } & ? ? & & 80 \\\hline \text { Depot } & \text { No } & & & 40 \\\hline & \text { Total } & 30 & 90 & 120\end{array}$

• A) 24
• B) 20
• C) 10
• D) It cannot be determined.
• E) 15

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Definitions:

Oligopolistic Market

A market structure characterized by a small number of firms that have significant control over market prices and competition.

Increase Sales

An objective of businesses aimed at growing the number of products sold or services rendered.

Cartel Agreement

A formal, explicit agreement among competing firms to control prices, production, and market shares.

Cartelized Market

A market condition where a few suppliers act together to control prices or limit market competition.