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Arithmetic Mean/Simple Mean (Average) Video Lecture | Zoology Optional Notes for UPSC

FAQs on Arithmetic Mean/Simple Mean (Average) Video Lecture - Zoology Optional Notes for UPSC

1. What is the formula to calculate the arithmetic mean or simple mean?

Ans. The formula to calculate the arithmetic mean or simple mean is to sum up all the values in a data set and then divide by the total number of values.

2. How is the arithmetic mean different from the median and mode?

Ans. The arithmetic mean is the average of all the values in a data set, while the median is the middle value when the data set is arranged in ascending or descending order. The mode is the value that appears most frequently in the data set.

3. Why is the arithmetic mean commonly used in statistical analysis?

Ans. The arithmetic mean is commonly used in statistical analysis because it provides a good representation of the central tendency of a data set and is easy to calculate and understand.

4. How can outliers affect the arithmetic mean?

Ans. Outliers, which are extreme values in a data set, can significantly affect the arithmetic mean by pulling it towards their value. This can distort the overall average and may not accurately represent the data set.

5. In what situations is the arithmetic mean not the best measure of central tendency?

Ans. The arithmetic mean may not be the best measure of central tendency when dealing with skewed data or data sets with outliers. In such cases, the median or mode may be more appropriate measures to use.

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Oct 13, 2025 Last updated

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	Zoology Optional Notes for UPSC 181 videos\|351 docs

Zoology Optional Notes for UPSC

181 videos|351 docs

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