For the Following Frequency Distribution of Exam Scores,how Many Students $$\begin{array} { l l } X & \mathrm { f } \\\hline 90 - 94 & 3 \\85 - 89 & 4 \\80 - 84 & 5 \\75 - 79 & 2 \\70 - 74 & 1\end{array}$$

question 64

Multiple Choice

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

• A)2
• B)3
• C)7
• D)Cannot be determined

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Child-rearing

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