The Scores on a Recent Statistics Test Are Given in the Frequency

question 63

Multiple Choice

The scores on a recent statistics test are given in the frequency distribution below. Construct the corresponding relative frequency distribution. Round relative frequencies to the nearest hundredth of a percent if necessary. $\begin{array}{c|c}\text { Scores } & \text { Frequency } \\\hline 0-60 & 3 \\61-70 & 10 \\71-80 & 11 \\81-90 & 4 \\91-100 & 1\end{array}$

• A) \(\begin{array}{c|c} \text { Scores } & \begin{array}{r} \text { Relative } \\ \text { Frequency } \end{array} \\ \hline 0-60 & 10.34 \% \\ 61-70 & 34.48 \% \\ 71-80 & 37.93 \% \\ 81-90 & 13.79 \% \\ 91-100 & 3.45 \% \end{array}\)
• B) \(\begin{array}{c|c} & \begin{array}{r} \text { Relative } \\ \text { Scores } \end{array} \\ \hline 0-60 & 0.21 \% \\ 61-70 & 0.24 \% \\ 71-80 & 0.55 \% \\ 81-90 & 0.03 \% \\ 91-100 & -0.03 \% \end{array}\)
• D) \(\begin{array}{c|c} & \begin{array}{c} \text { Relative } \\ \text { Scores } \end{array} \\ \hline 0-60 & 12.5 \% \\ 61-70 & 20.1 \% \\ 71-80 & 37.3 \% \\ 81-90 & 15.2 \% \\ 91-100 & 14.9 \% \end{array}\)

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Definitions:

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The process of converting waste materials into new materials and objects, aiming to reduce resource consumption, environmental pollution, and energy usage.