Answer: C. a parameter.
Explanation:
- In statistics, a parameter is a measure ( such as population mean , population proportion... ) generated from the entire population .
- A statistics is also a measure( such as sample mean , sample standard deviation , sample proportion,..) but generated from the sample taken from population.
Given : The Department of Motor Vehicles reports that 32% of all vehicles registered in a state are made by a Japanese or a European automaker.
Here, Department as considered the entire population of vehicles registered in a state are made by a Japanese or a European automaker to find the proportion.
Thus , 32% = Population proportion of vehicles registered in a state are made by a Japanese or a European automaker
So , The number 32% is best described as a parameter.
Hence, the correct answer is C. a parameter.