In an observational study of children in a day care setting, you select one participant at a time for observation. This is an example of using .

individual sampling

Explanation:

Individual sampling: In psychology, the term "individual sampling" is described as a process in which each member of a specific population consists of a known, and a "non-zero chance" of being considered or selected as one of the different parts of the given sample. However, there are various kinds of individual sampling.

In the question above, the given statement represents individual sampling.

i do believe the correct answer is the spread of chinese culture throughout asia and africa.good luck

explanation:

if you have ask any question and if you have got the answer reply for your position there will be option for making a brain least answer you need to click click there and they can get the points in brain list main thing is that you need to choose those answer which answer you are you think that it is to you