\textbf{141-} Referring to the frequency histogram below, what is the total variance of the data?
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\textit{[Figure: Frequency histogram with x-axis values 3, 5, 7, 9, 11 and y-axis (frequency) values up to 8, showing a roughly triangular distribution with peak around x=7]}
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(1) $4.5$\\
(2) $4.8$\\
(3) $4.92$\\
(4) $5.12$
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