To find the geometric mean of two numbers, such as 7 and 9, you can follow these steps:
- Multiply the two numbers together. In this case, 7 multiplied by 9 equals 63.
- Take the square root of the product. The square root of 63 is approximately 7.937.
So, the geometric mean of 7 and 9 is approximately 7.937.
The geometric mean is useful when comparing different items with different properties. It provides a central tendency that is less affected by extreme values compared to the arithmetic mean.