Find the midrange for the given sample data.
-The weights (in ounces)of 10 cookies are shown. $$\begin{array} { l l l l l }
0.71 & 0.69 & 0.82 & 1.45 & 1.34 \
1.06 & 0.67 & 1.24 & 1.16 & 0.79
\end{array}$$ Compute the variance.
A)0.064
B)0.077
C)0.086
D)0.07

Question

Find the midrange for the given sample data.
-The weights (in ounces)of 10 cookies are shown. $$\begin{array} { l l l l l } 
0.71 & 0.69 & 0.82 & 1.45 & 1.34 \
1.06 & 0.67 & 1.24 & 1.16 & 0.79
\end{array}$$ Compute the variance.
A)0.064
B)0.077
C)0.086
D)0.07

Quizplus · Accepted Answer

The variance is calculated by finding the mean (average) of the data, subtracting the mean from each data point, squaring each of these differences, summing these squares, and then dividing by the number of data points minus one. For the given data, the mean is $\frac{0.71 + 0.69 + 0.82 + 1.45 + 1.34 + 1.06 + 0.67 + 1.24 + 1.16 + 0.79}{10} = 0.993$. The squared differences from the mean are then summed and divided by $n-1 = 9$, resulting in a variance of approximately 0.086.

Find the Midrange for the Given Sample Data 0.710.690.821.451.341.060.671.241.160.79\begin{array} { l l l l l } 0.71 & 0.69 & 0.82 & 1.45 & 1.34 \\1.06 & 0.67 & 1.24 & 1.16 & 0.79\end{array}0.711.06​0.690.67​0.821.24​1.451.16​1.340.79​

Find the Midrange for the Given Sample Data $\begin{array} { l l l l l } 0.71 & 0.69 & 0.82 & 1.45 & 1.34 \\1.06 & 0.67 & 1.24 & 1.16 & 0.79\end{array}$