Chapter 5: Measures of Central Tendency — Online MCQ Test
STATISTICS · CLASS 11th · Tamil Nadu State Board
Practice Chapter 5: Measures of Central Tendency with a free chapter-wise online MCQ test.
This chapter covers: This chapter covers average metrics arithmetic mean median mode geometric mean and harmonic mean calculations. Students evaluate partition values percentiles deciles quartiles and....
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Chapter 5: Measures of Central Tendency — Important Questions & Answers
Which of the following is considered the most popular measure of central tendency?
- A. Median
- B. Arithmetic Mean
- C. Mode
- D. Geometric Mean
Answer: B. Arithmetic Mean
Arithmetic mean is the most widely used measure due to its mathematical properties and simplicity.
Arithmetic mean is the most widely used measure due to its mathematical properties and simplicity.
Which partition value divides the series into four equal parts?
- A. Median
- B. Decile
- C. Quartile
- D. Percentile
Answer: C. Quartile
Quartiles divide a series into four equal parts (Q1, Q2, Q3).
Quartiles divide a series into four equal parts (Q1, Q2, Q3).
Which measure is most suitable for calculating average speed or rates?
- A. Arithmetic Mean
- B. Geometric Mean
- C. Harmonic Mean
- D. Median
Answer: C. Harmonic Mean
Harmonic mean is specifically appropriate for averaging rates and speeds.
Harmonic mean is specifically appropriate for averaging rates and speeds.
If every observation in a dataset is increased by 5, the mean will:
- A. Remain unchanged
- B. Increase by 5
- C. Increase by 5 times
- D. Decrease by 5
Answer: B. Increase by 5
The mean follows the principle of change of origin; adding a constant to each value increases the mean by that constant.
The mean follows the principle of change of origin; adding a constant to each value increases the mean by that constant.
In a series, if Q1 = 20 and Q3 = 40, what is the Quartile Deviation?
- A. 10
- B. 20
- C. 30
- D. 60
Answer: A. 10
Quartile deviation is calculated as (Q3 - Q1) / 2 = (40 - 20) / 2 = 10.
Quartile deviation is calculated as (Q3 - Q1) / 2 = (40 - 20) / 2 = 10.