dentify the type of sampling method used by the researcher in each situation: simple random sampling, systematic sampling, stratified sampling, or cluster sampling.   1. A researcher chose the participants of his study by selecting every 8th member of the population. 2. A researcher interviewed all the teachers in each of 15 randomly selected private schools in Cagayan de Oro City. 3. A researcher interviewed people from each barangay in the municipality of Alubijid for his research on population.

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.