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.
A group of plants in the genus Pueraria, in the pea family Fabaceae, subfamily Faboideae.
Answer:
1. when and how it was found 2. when they sent rovers or machines 3. Facts about the plant
Explanation:
Does this help??
It shows them the directions (North, South, East, West) and from then they know which way to go and to follow.
Answer:
not in large countries such as the US and europe, but in certain poorer areas of africa it is.
Explanation:
