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-Given a Set of Data with a Mean of 25

Question 61

Short Answer

 Group Xf cum f202235017195471416104211131432810111857672411\begin{array} { | l | l | l | } \hline \text { Group } \boldsymbol { X } & \boldsymbol { f } & \text { cum } \boldsymbol { f } \\\hline & & \\\hline 20 - 22 & 3 & 50 \\\hline 17 - 19 & 5 & 47 \\\hline 14 - 16 & 10 & 42 \\\hline 11 - 13 & 14 & 32 \\\hline 8 - 10 & 11 & 18 \\\hline 5 - 7 & 6 & 7 \\\hline 2 - 4 & 1 & 1 \\\hline\end{array}
-Given a set of data with a mean of 25.7 and standard deviation of 5.2, calculate the z-score of the following raw scores.
a. 21.6b. 28.9c. 24.5d. 31.4\begin{array} { | l | l | l | l |} \hline a.~ 21.6&b. ~28.9&c. ~24.5&d. ~31.4\\\hline &&\\\hline\end{array}

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