Conduct a mini-census by counting the members of your extended family, and emphasize age. Try to include three or four generations, if possible. Create a table and include total population plus percentages of each generation. Next, begin to analyze age patterns in your family. What issues are important and specific to each group? What trends can you predict about your own family over the next ten years based on this census? For example, how will family members’ needs and interests and relationships change the family dynamic?

30 members.

Explanation:

There are 30 members in my extended family included children, parents and their grandparents. There are three generations are present in my family. The first generation includes grandparents, the second generation include parent, uncles and aunties whereas in the third generation, there are boys and girls. The age of first generation is more than 70 years, the age of second generation is between from 40 to 50 years and the age of third generation is 7 to 25 years. The third generation get education now and after 10 years they became the second generation means they will be parents whereas the second generation became first generation after ten years and the first generation may be removed from the family.

"choosing is refusing" means individuals face an opportunity cost with each decision they make. economists state that every decision involves trade-offs. opportunity cost is the least desirable alternative given up as a result of a decision.

i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.