A data analyst is tasked with creating a quarterly performance report for the sales department. The report needs to summarize the key characteristics of the sales data from the past three months, including the total revenue, the average deal size, the median number of products per sale, and the range of sales values. The goal is to provide a clear snapshot of what has already occurred. Which statistical method should the analyst use to accomplish this?
The correct option is Descriptive. Descriptive statistics are used to summarize and describe the main features of a collection of data. The scenario requires summarizing past performance using measures like totals, averages (mean), medians, and ranges, which are all fundamental components of descriptive analysis.
Inferential statistics would be used to make generalizations about a larger population from a sample of the data, which is not the stated goal.
Predictive statistics would be used to forecast future sales, but the scenario is focused on analyzing past data.
Prescriptive statistics would involve recommending specific actions to improve future sales, which is beyond the scope of simply summarizing past performance.
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CompTIA Data+ DA0-002 (V2)
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