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**Class 11 - Economics - Statistical Tools - Measures of Central Tendency **

*(Questions and Answers)*

**Q1: Define an average?**

Answer: An average is a single value that represents the whole group.

**Q2: Name the measures of central tendency?**

Answer: Three important types of statistical averages are :

- Arithmetic Mean,

- Median and

- Mode.

**Q3: What is median?**

Answer: It is defined as the middle value of the series when arranged either in ascending order or in descending order.

**Q4: What is mode ?**

Answer: It is defined as the value which occurs most frequently in a series.

**Q5: Can mode be graphically located?**

Answer: Mode can be located graphically with the help of histogram.