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A researcher wants to estimate the survival time of a cancer patient after a course of radiation therapy. What is the variable of interest to

A researcher wants to estimate the survival time of a cancer patient after a course of radiation therapy.

  1. What is the variable of interest to the researcher?
  2. Is the variable in part (a) qualitative, quantitative discrete, or quantitative continuous?
  3. What is the population of interest?
  4. How could the researcher select a sample from the population?
  5. What problems might occur in sampling from this population?

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