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(A).        Address the following issues in your response:1. What is the function of an Institutional Review Board (IRB)?2. Name specific examples of patient groups who could not truly give their consent to participate in a research study.3. How is a random sample obtained?Correlations(B).   Discussion Board AssignmentProvide an example of two variables (from life in general) that are likely to have a moderate to strong positive correlation.Provide an example of two variables that are likely to have a moderate to strong negative correlation.Make sure each example is supported by a rationale