Help please Half of the subjects (the study volunteers) were given a placebo. The other half were given the vaccine. This created two groups: the placebo group and the vaccine group. The study used a random process to choose which subjects were assigned to each group. Why would subjects be randomly assigned to the groups?

answer: this is easy, i found "it"

i will repeat the question again, "find it."

here, i located it.

although there are different versions for the fairy tale little red riding hood,   as the one from grimm brothers and perrault, all of the versions show the huntsman as a man who is in perfect harmony with nature. the statement that best describe him, the huntsman, is that he is a true hero who inspires those around him due to his words and actions. the way he acts show internal reflections that are an example to follow by anybody who takes the time to analysing them. he shows altruism actions when he aside puts his job just to check the grandmother is well, by doing this he could notice at an early stage what has happened and could save her.