Final answer:
The mean number of capital prisoners refers to the average number of prisoners who have been convicted of capital crimes or offenses that carry the death penalty.
Step-by-step explanation:
The mean number of capital prisoners refers to the average number of prisoners who have been convicted of capital crimes or offenses that carry the death penalty. To calculate the mean, you would add up the number of capital prisoners and divide it by the total number of observations.
From the information provided, there is no specific number given for the mean number of capital prisoners. However, it is mentioned that the United States has the largest number of prisoners of any nation in the world, with approximately 2.1 million incarcerated individuals. This information can give you an idea of the magnitude of capital prisoners in the United States.
Example:
If you have the following numbers of capital prisoners: 100, 200, 300, the mean would be (100 + 200 + 300) / 3 = 200 prisoners.