What are the effects of Uniform Change on both the Mean and the Variance? Let's experiment with our simple Sphere Population. Suppose we added a fixed amount to the values which comprise our distribution. Let's add 5 to the members of our population sample. The spheres would then appear as follows:
What is the new Mean Value?
We find that the Mean value which was once 7.2 inches has increased by five to 12.2! You can see that by adding a constant to the value of the individuals of a population, you increase its Mean value by that constant.
Does this also occur in relation to the Variance?