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Bart runs a food truck in front of a multi-story office building. He wants to know which type of sandwiches his customers prefer, grilled or plain. He randomly surveyed a few of his friends who have eaten at his food truck and recorded the results.

\begin{tabular}{|c|c|}
\hline Friends Preferring Grilled Sandwiches & Friends Preferring Plain Sandwiches \\
\hline 15 & 5 \\
\hline
\end{tabular}

In this case, the population consists of [tex]$\square$[/tex] all of Bart's customers, and the sample consists of [tex]$\square$[/tex]. Based on the results, it can be concluded that [tex]$\square$[/tex]. The results would have been more accurate if Bart had surveyed [tex]$\square$[/tex].


Sagot :

In this case, the population consists of all of Bart's customers and the sample consists of a few of his friends who have eaten at his food truck. Based on the results, it can be concluded that friends prefer grilled sandwiches. The results would have been more accurate if Bart had surveyed a larger and more diverse group of customers.