Identify the incorrect statement in the context of measures of variability:
Show Hint
- Range is the difference between maximum and minimum values of the data.
- Mean is the average of numeric values of an attribute.
- Standard deviation refers to differences within the set of data of a variable.
- Measures of variability is also known as measures of dispersion.
The Correct Option is B
Solution and Explanation
- Range: Difference between maximum and minimum values → Correct.
- Mean: Represents central tendency, not a measure of variability → Incorrect.
- Standard Deviation: Measures how data points differ from the mean (a measure of variability) → Correct.
- Variability/Dispersion: Both terms refer to spread of data → Correct.
Step 2: Conclusion.
The incorrect statement is that Mean is a measure of variability. Mean is a measure of central tendency, not dispersion.
Final Answer: \[ \boxed{\text{Mean is the average of numeric values of an attribute.}} \]
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