Retail chain Kroger has more than 2700 locations and is the largest supermarket in the United States based on revenue. K

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Retail chain Kroger has more than 2700 locations and is the
largest supermarket in the United States based on revenue. Kroger
has invested heavily in data, technology, and analytics. Feeding
predictive models with data from an infrared sensor system called
QueVision to anticipate when shoppers will reach the checkout
counters, Kroger is able to alert workers to open more checkout
lines if needed. This has allowed Kroger to lower its average
checkout time from four minutes to less than 30 seconds (Retail
Touchpoints).
1. In a table format indicate what the variables are, the type
of data and the scale of measurement for each variable. Your table
should follow the following format: variable- Type of data- Scale
of measurement
2. how many elements in the data set
3. how many variables are in the data set
4. How many observations in the data set