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* Interpreting quartiles
cc-6th-data-statistics/cc-6th-box-whisker-plots/e/interpreting-quartiles-on-box-plots?classCode=BC...
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The following table shows the five-number summary for the number of years of experience for each teacher at Carlson High School.
\begin{tabular}{ccccc}
$\operatorname{Min}$ & $Q_{1}$ & Median & $Q_{3}$ & $\operatorname{Max}$ \\
\hline 2 & 5 & 8 & 11 & 16
\end{tabular}
About $25 \%$ of Carlson High School teachers have fewer than how many years of experience?
Choose 1 answer:
5
(B) 5
(c) 8
(D) 11
(E) 16
Answer
\boxed{5}
Step 1 ：Given the five-number summary table for the number of years of experience for each teacher at Carlson High School: \begin{tabular}{ccccc} $\operatorname{Min}$ & $Q_{1}$ & Median & $Q_{3}$ & $\operatorname{Max}$ \\ \hline 2 & 5 & 8 & 11 & 16 \end{tabular}
Step 2 ：We are asked to find the number of years of experience that about 25% of Carlson High School teachers have fewer than, which corresponds to the first quartile, $Q_1$. From the table, we can see that $Q_1 = 5$ years.
Step 3 ：\boxed{5}
