Tammy Fisher

2021-12-01

$\begin{array}{|ccccccccc|}\hline x& 471.7& 659.3& 740.5& 790.5& 781.3& 1047.3& 969.5& 1206.1\\ y& 446.3& 680.2& 725.2& 765.3& 740.4& 1005.6& 936.3& 1156.8\\ \hline\end{array}$ Using the data find the y mean 219.60 833.28 205.42 807.01

Florence Pittman

Introduction
To find the mean of y.
Step 2
Given data:
$\begin{array}{|ccccccccc|}\hline x& 471.7& 659.3& 740.5& 790.5& 781.3& 1047.3& 969.5& 1206.1\\ y& 446.3& 680.2& 725.2& 765.3& 740.4& 1005.6& 936.3& 1156.8\\ \hline\end{array}$
mean of $y=\frac{\sum y}{n}$
$n=8$
$\sum y=446.3+680.2+725.2+765.3+740.4+1005.6+936.3+1156.8$
$=6456.08$
Then, mean of $y=\frac{6456.08}{8}$
$=807.01$
Therefore, the fourth option 807.01 is correct.
Conclusion
Therefore, the fourth option 807.01 is correct.

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