Sandra wants to study how students in their senior year of high school prepare for college. She starts by visiting an elite boarding school nearby. Sandra knows that to make general claims about seniors preparing for college, she will need to randomly select from the population she wants to generalize to. return to the high school next year to study the new seniors. be aware of her intentions, so the study will be valid and reliable. visit more schools so that her sample is representative of the group she wants to generalize to

- Visit more schools so that her sample is representative of the group she wants to generalize to.

Explanation:

Sandra must 'visit more and more schools in order to ensure that the sample which she selects appropriately represents the group about which she is generalizing.' In the Inferential statistics, to reach an accurate, authentic, and objective inference about the representative population, the selection of the sample must be unbiased and random. Thus, the sample must be selected from a wide area to offer equal opportunity to every part of population to represent that assists in making valid and reliable claims.

answer is b shrapnel injuries

new communications technology has affected the way social movements are organized because nowadays, social movements rely on social networks and the media to get different people with a similar way of thinking in contact, and thus, get them to mobilize for a greater cause.

individuals only participate in collective action when they feel identified with it. is in this aspect that social media becomes relevant, because it guarantees communication among all individuals and organizes the social actions that are going to be carried out, i.e., the social movements.

in addition, being covered by the media is important to validate the message and make it relevant in the social agenda, as well as to reach more people who can share interests, appealing to public sympathy for their cause.

in conclusion, it is by social networks and social media that social movement is given birth; by connecting different individuals with similar ideas and organizing them to mobilize for a greater cause.