The Class Results on a Mathematical Quiz Are Shown in the Table

question 16

Multiple Choice

The class results on a mathematical quiz are shown in the table below. Find the average number of incorrect answers on the quiz.
$\begin{array} { | c | c | } \hline \begin{array} { c } \text { Total number } \\\text { of incorrect } \\\text { answers on } \\\text { the quiz }\end{array} & \begin{array} { c } \text { Number } \\\text { of students }\end{array} \\\hline 0 & 4 \\\hline 1 & 4 \\\hline 2 & 8 \\\hline 3 & 10 \\\hline 4 & 1 \\\hline\end{array}$

• A) 2
• B) 5.4
• C) 9
• D) 1.8

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