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5 Written questions

5 Multiple choice questions

  1. is a variable which represents a measurable quantity,
    one which can be represented by a number.
  2. of a quantitative data set is a summary of the center of the data set.
    It is computed by adding the data elements together and dividing by N, the number of
    data elements.
  3. N=n1*n2/k
  4. is a sampling technique in which every member of the population should have the same (random) chance of being in the sample as any other member of the
    population.
  5. 25/100 * N

5 True/False questions

  1. Q325/100 * N

          

  2. confounding variableis a variable which represents a measurable quantity,
    one which can be represented by a number.

          

  3. outlieris an alternative to a census, in which data is collected from only some members of the population.

          

  4. five-number summaryof a quantitative data set is a summary of the center of the data set.
    It is computed by adding the data elements together and dividing by N, the number of
    data elements.

          

  5. sample biasof a quantitative data set is a summary of the center of the data set.
    It is computed by adding the data elements together and dividing by N, the number of
    data elements.