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

question 256

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Consider the following test scores obtained by a class:
}"> cellpadding="0" cellspacing="0" width ="52%" border="0"> \text { cellpadding="0" cellspacing="0" width }=" 52 \% " \text { border="0"> }

 Test Score  Frequency 9028037010604503\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: __________


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