State whether the data are best described as a population or a sample. The U. S. Department of Transportation announces that of the 250 million registered passenger vehicles in the US, are electro-gas hybrids.

The registered passengers vehicle is he population and the one that are electro-gas hybrids forms a sample of the population.

Step-by-step explanation:

We are given the following in the question:

The U. S. Department of Transportation announces that of the 250 million registered passenger vehicles in the US, 2.1% are electro-gas hybrids.

Population and sample:

Population is collection of all the observations of individuals of interest. Sample is a subset of population. Population is always larger than the sample. Population is the universal set of all observations.

Thus, for the given case,

Individual of interest:

250 million registered passenger vehicles in the US

Population of interest:

250 million registered passenger vehicles in the US

Sample:

2.1% electro-gas hybrids.

Thus, the registered passengers vehicle is he population and the one that are electro-gas hybrids forms a sample of the population.