Answer: I would say A is the correct answer
Explanation:
Answer:
Tracking system
Explanation:
A system that is used to observe people or objects that are on the move with providing a time ordered sequence of the location data for processing further.
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Answer:</h2>
The answer is:
C. Mass
Explanation:
The physical changes of a substance are those that change its physical properties. Physical properties include attributes such as color, gloss, malleability, shape, texture, or condition.
The research error described above is an example of selection bias.
Selection bias takes place when, from a population of interest, a group of individuals is selected in order to construct a sample but without a proper randomization. The result is a sample which is not representative of the underlying population.
According to the example, the target population of the research comprises all students but the sample only includes boys. Hence, selection has not been random because it followed a gender criteria, and the results obtained using it cannot be applicable to the whole population because they are affected by a selection bias.
