Jackie is doing a study on the number of hours spent watching television and how this affects family cohesion. She decides to mail a questionnaire to randomly selected households in her state. This is an example of a survey.

self-administered        

Explanation:

Self-administered survey: In research methods, the term "self-administered survey" is described as one of the different survey methods that are being designed in a structured form and consists of a specific series of different "open-ended" and "closed-ended" questions. However, it is being denoted as "self-administered" because the respondents or the participants of the survey fill the given questionnaire themselves, in the absence of any interviewer.

In the question above, the given statement is an example of a self-administered survey.

to stay where they were until m sent for

ne pare rău, dar când mi-am căutat întrebarea, doar avioanele au apărut .. deci, ar putea fi răspunsul, sau ar putea fi baloane cu aer cald, deoarece acestea pot conta și ca ambarcațiunile de aer, dar nu sunt complet sigur de asta. a fost doar o presupunere, sper că am ajutat, îmi pare rău dacă nu am făcut-o. de asemenea, folosesc traducerea google, pentru a traduce ceea ce spun în engleză, așa că îmi pare rău dacă gramatica sau chiar limba nu este corectă