Can you help with this Statistics question

1) Referring to the marital status, suppose that we code single (never married) as 1, married as 2, widow or widower as 3, and divorced as 4. If an interviewer obtains marital information from 24 respondents, determine how many are single (never married), married, widow or widower, and divorced if they are coded as follows:

1 3 2 2 2 1 4 2 3 4 1 4

2 1 1 2 1 4 1 3 2 1 1 4

2) Suppose we are given complete information about the tips received in a certain week by waitresses employed by a large restaurant. Give one example each of problems in which we would consider this data

a) a population

b) a sample

3)Suppose we are given complete information about the application for and the time elapsed before issuance of residential building permits in Chicago for the past year. Give one example each of problems in which we would consider this data

a) a population

b)a sample

4) "Bad" statistics may also result from asking questions in the wrong place or at the wrong time. Explain why the following may lead to useless data.

a) To determine the average number of pedestrians who walk through a down-town shopping mall, a researcher makes his counts during mid-December.

b) To determine the average number motor vehicles that use a certain highway, a researcher makes his counts every weekend for several weeks.

c) To determine the attitudes of residents of a town toward a proposed bond issue for the construction of a high school, the researcher interviews parents as they pick up and deliver their children who attend grade school.

d) To determine the proportion of women who would purchase a new line of expensive, high-fashion shoes, a student employee of a research company interview all of the women students in her statistics class.