Final answer:
The 14th person's family size and car type is a data point in the survey. the correct answer is: A.
Step-by-step explanation:
The 14th person's family size and car type is a data point. A data point refers to a specific piece of information or observation within a dataset.
In this case, the 14th person's family size and car type would be an example of a data point because it represents a specific individual within the survey and records their family size and car type.In statistics, a data point is an individual unit of data.
For a data point to be complete, it should include all elements that are being measured or recorded in a particular dataset. Based on the information provided from the survey of 25 people, where each person's family size and type of car are recorded, we can determine what constitutes a single data point. Let's examine each option: A. The 14th person's family size and car type - This option includes both elements that are part of the survey:
the family size and the type of car. Since it includes all the necessary information for one individual, this is considered a complete data point. B. The 14th person's family size - This option includes only one element that is part of the survey: the family size.
While this is a piece of the data, it does not by itself represent a complete data point since it's missing the type of car for the same individual to match the criteria of the survey. C. The car type of each person - This option, like option B, only includes one element from the survey: the type of car.
It doesn't include the family size for any individual, and thus, does not represent a complete data point by itself. Given these considerations, the correct answer is: A. The 14th person's family size and car type This is a data point because it encapsulates the full range of information that the survey aims to collect for each individual respondent.