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For the Following Frequency Distribution of Exam Scores,how Many Students

Question 32

Multiple Choice

For the following frequency distribution of exam scores,how many students had scores lower than X = 80?? Xf90−94385−89480−84575−79270−741\begin{array} { l l } \mathrm { X } & \mathrm { f } \\\hline 90 - 94 & 3 \\85 - 89 & 4 \\80 - 84 & 5 \\75 - 79 & 2 \\70 - 74 & 1 \\\hline\end{array}


A) ?2
B) ?3
C) ?7
D) ?8

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