TABLE 13-10 the Management of a Chain Electronic Store Would Like to Like

question 89

Short Answer

TABLE 13-10
The management of a chain electronic store would like to develop a model for predicting the weekly sales (in thousands of dollars) for individual stores based on the number of customers who made purchases. A random sample of 12 stores yields the following results:

-Referring to Table 13-10, what is the value of the coefficient of determination?

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Definitions:

Variation

Variation refers to the extent to which data points in a data set differ from each other and from the mean of the dataset.

Standard Deviation

A measure that quantifies the amount of variation or dispersion of a set of data values from the mean value.

Standard Deviation

A quantification of the range or diversity in a dataset, illustrating the difference of the numbers from their mean value.

Mean

The average of a set of numbers, calculated by adding them together and dividing by the count of numbers.