A major department store chain is having a sale on refrigerators. The number of refrigerators sold during
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A major department store chain is having a sale on refrigerators. The number of refrigerators sold during this sale at a sample of ten stores was:
$\begin{array}{llllllllll}80 & 110 & 0 & 40 & 70 & 80 & 100 & 50 & 80 & 30\end{array}$
a. What are the mean, mode, and median? Which measure of central tendency is most appropriate in this case and why?
b. What are the variance and the standard deviation?
c. Construct a histogram, and discuss whether this variable is normally distributed.
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a The mean of the data is the sum of all the values divided by the number of values In this case the mean of the data is 80 110 0 40 70 80 100 50 80 3...View the full answer
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