CRITICAL ANALYSIS: calculate the total score for each student and convert this to a percentage.present these results using an appropriate chart or graph.

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CRITICAL ANALYSIS

The data in the file shows the test results for a group of 15 students. Depending on the accuracy of the students’ answers they were awarded either 0, 1, 2 or 3 marks for each question. The test was set for formative purposes and was intended to assess current student progress on a course.

  1. Calculate the total score for each student and convert this to a percentage. Present these results using an appropriate chart or graph.
  2. Do you believe that the test results are normally distributed? What evidence supports your conclusion?
  3. Calculate the standard deviation for the set of marks (treating this set of data as the total population) and use this to identify which students are required to attend the compulsory revision sessions.