46.5% of all registered voters in a country are registered democrats. Is this a parameter or a statistic?

• A. Parameter
• B. Statistic

Answer: (A)

Verified step by step guidance

1. Understand the difference between a parameter and a statistic: A parameter is a numerical value that describes a characteristic of a population, while a statistic is a numerical value that describes a characteristic of a sample.
2. Identify the population in the problem: The problem states 'all registered voters in a country,' which indicates that the entire population of registered voters is being considered.
3. Identify the numerical value given: The problem states '46.5% of all registered voters in a country are registered democrats.'
4. Determine whether the numerical value describes a population or a sample: Since the percentage refers to 'all registered voters,' it describes a characteristic of the entire population.
5. Conclude that the given percentage is a parameter because it describes a characteristic of the entire population of registered voters, not just a sample.