Select the secondary source of data. Data obtained from political survey. Data collected from an experiment. Observed data from empirical survey. Analyzing census data.

PRIMARY DATA COLLECTION SECONDARY DATA COLLECTIONPast Research Studies Focus groups Observation Online Database Interviews Survey questionnaires Published sources Publicly Available Data Government Records Experiments Past Research Studies Focus groups Observation Online Database Interviews Survey questionnaires Published sources Publicly Available Data Government Records Experiments

Which of the following is not a method of primary data collection?Focus groupsSurveys Review of statistical data from the US Census BureauInterviews

What do you understand by primary data?Information obtained directly from original sources.Data collected by government agencies.Data less reliable than secondary data.Information obtained from previous research studies

A political candidate surveys voters to learn about their opinions on key issues. The politician’s data team notices that most respondents are people who have already voted in the current election. The fairness of the survey could be improved by over-sampling people from which group?1 pointPeople who have not yet voted in the electionPeople who voted against the candidate in the current electionFirst-time voters who already voted in the current electionPeople who voted for the candidate in the current election

discuss the merits and mederits of a census as compared to a survey