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DA0-001 · Question #341

Given the following table: Which of the following methods is the best way to describe the changes in the values in the table?

The correct answer is B. Range. The range is the best method to describe the overall spread or extent of changes in values within a table by identifying the difference between the maximum and minimum values. It provides a simple measure of the total variability.

Data Analysis

Question

Given the following table:

Which of the following methods is the best way to describe the changes in the values in the table?

Exhibit

DA0-001 question #341 exhibit

Options

  • AAverage
  • BRange
  • CStandard deviation
  • DMedian

How the community answered

(43 responses)
  • A
    2% (1)
  • B
    86% (37)
  • C
    7% (3)
  • D
    5% (2)

Why each option

The range is the best method to describe the overall spread or extent of changes in values within a table by identifying the difference between the maximum and minimum values. It provides a simple measure of the total variability.

AAverage

The average (mean) describes the central tendency of the data, not the changes or spread of values.

BRangeCorrect

The range, calculated as the difference between the maximum and minimum values in a dataset, directly describes the total spread or change observed among the values. This provides a straightforward measure of variability from the lowest to the highest point.

CStandard deviation

Standard deviation measures the average amount of variability or dispersion around the mean, which is a more complex measure of spread than simply describing the total change.

DMedian

The median is another measure of central tendency, representing the middle value, not the extent of changes in values.

Concept tested: Descriptive statistics, measures of variability

Source: https://learn.microsoft.com/en-us/azure/architecture/data-guide/big-data/descriptive-analytics

Topics

#Statistical measures#Data variability#Descriptive statistics#Range

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