Geometric Mean

Geometric Mean Video Lecture | Mathematics (Maths) Class 11 - Commerce

Mathematics (Maths) Class 11

75 videos|238 docs|91 tests

FAQs on Geometric Mean Video Lecture - Mathematics (Maths) Class 11 - Commerce

 1. What is the formula for calculating the geometric mean?
Ans. The formula for calculating the geometric mean is the nth root of the product of n numbers. For example, if you have three numbers, the formula would be the cube root of the product of those three numbers.
 2. How is the geometric mean different from the arithmetic mean?
Ans. The arithmetic mean is the average of a set of numbers, obtained by dividing the sum of the numbers by the count of numbers. On the other hand, the geometric mean is a type of average that is calculated by taking the nth root of the product of n numbers. The geometric mean is generally used when dealing with quantities that are multiplicative in nature.
 3. What are some practical applications of the geometric mean?
Ans. The geometric mean is commonly used in various fields such as finance, biology, and physics. In finance, it is used to calculate average rates of return on investments. In biology, it is used to determine the growth rate of populations. In physics, it is used to calculate average velocities or speeds.
 4. Can the geometric mean be negative?
Ans. No, the geometric mean cannot be negative. Since it involves taking the nth root of a product, the result will always be a positive number or zero. Negative numbers do not have real nth roots.
 5. How is the geometric mean useful in investment analysis?
Ans. The geometric mean is useful in investment analysis because it provides a more accurate representation of the average rate of return over a period of time. Unlike the arithmetic mean, which can be heavily influenced by extreme values, the geometric mean takes into account the compounding effect of returns over time. This makes it a better measure for evaluating the performance of investments.

Mathematics (Maths) Class 11

75 videos|238 docs|91 tests

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