Enter the number of total successes and the total size of the population into the calculator to determine the population proportion.
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Population Proportion Formula
The following is the population proportion:
P = X / N *100
- Where P is the population proportion (%)
- X is the number of success
- N is the size of the population
Population Proportion Definition
A population proportion is defined as a parameter describing the ratio or percentage of a population that has a certain association. For example, the percentage of people that are male, have brown hair, etc.
Can a population proportion be negative?
A population proportion cannot be negative because the values that make of the ratio, which are number of successes and population size, cannot be less than 0.
Is population proportion the same as standard deviation?
A population proportion is not the same as standard deviation. A population proportion describes the percentage of a total population that has a value, while a standard deviation describes the variance from the mean of a set of data.
What does a population proportion represent?
A population proportion represents the ratio of the number of people or things in a greater population or set of data that have a certain characteristic. This ratio can often be presented as a percentage for simplicity.
When to use population mean vs population proportion?
You should use population mean when analyzing a characteristic of a population that each person or data point has a varying amount of that characteristic. You should use a population proportion when that characteristic is being measured in a yes or no situation, such as if a person has or doesn’t have brown hair.
How to calculate a population proportion?
- First, determine the characteristic or parameter to be analyzed. For example, this could be the number of people that own a car in a certain population.
- Next, measure the total number of people that have that characteristic. For this example, we will say that 500 people have a car.
- Next, determine the total population. We will say that there are 1,000 people in the population.
- Finally, calculate the population proportion using the formula: P = 500/1000 = .50 = 50%.
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