Consider the Following Test Scores Obtained by a Class }">$\text { cellpadding="0" cellspacing="0" width }=" 52 \% " \text { border="0"> }$

Short Answer

Consider the following test scores obtained by a class:
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$$\begin{array} { l l } \text { Test Score } & \text { Frequency } \\90 & 2 \\80 & 3 \\70 & 10 \\60 & 4 \\50 & 3\end{array}$$ Find the variance and standard deviation, rounded to the nearest hundredth. variance: __________ standard deviation: __________