Like americans, chinese and japanese americans have used their traditional cultures and patterns of social life to create and build their own subcommunities from which they have launched the next generation.

Cuban Americans, I thought it initially was European.

answer; i believe the correct answer is (4) flip a coin as each participant arrives,heads indicates assignment to the first group: tails indicates assignment to the second group;

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )