Answer: Cohort Analysis report
Explanation:
Cohort is defined as the collection of people who persist related or common characteristic. Cohort analysis report is the record that is made from the cohort behavior over certain period of time.
Analysis and comparison of different behavior is done in this report to determine the state of performance i.e.-high performance,low performance or moderate performance. Analytic dimensions are used in this record making such as Acquisition date etc.
Answer& explanation
A. Opinion polls are usually used to receive the public opinons by conducting a set of questions usually online.
B. Sampling In research refers to gathering a number of people, objects or items from a larger population , the sample must represent the poulation at large so that the discovered findings can be used to generalize for the whole population from which the sample was taken.
C. biases of polling are social desirability effect which refers to the fact that people or survey participants tends to choose those answers that they believe are social acceptable even if they may not be true and the bandwagon effect
C.
Social desirability: this is when survey respondents in the opinion polls say something that is inaccurate because the truth may not be socially acceptable--such as lying about how many times they smoke cigarettes a day
bandwagon effect: refers to supporting someone not because you have logical reason to do so but because they seem to be ahead of everyone in the polls; it's like going with the winning team.
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