Cuales son los elementos de una encuesta y cuál es el objetivo de esos elementos? La muestra y la población hacen parte de los objetos de una encuesta?

1. The elements of  a survey include;

a. Sample

b. Questionnaire

c. Interview

d. Analysis

Only the sample is part of the survey

Step-by-step explanation:

1. a. The sample

The sample is a subset of the population of interest of the survey and the sample should be representative of the population

b. The questionnaire

The questionnaire is the document or instrument used for collecting information from the sample as such, the questionnaire determines the information sought by the researcher

c. The interview

An interview is used to obtain direct opinions pertaining to products, subjects or organization whereby a small group or sample of the population that are closely related or well vast with the subject are interviewed

d. The analysis

The collected information is analysed and the margin of error is determined after which recommendations and conclusions can be made.

2. The entire population is not part of the survey, only the sample that is part of the survey.

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^