the file on canvas contains information on a number of variables measured on a sample of 103 students taking a math exam: sample of 103 students taking a math test: Code: a label for the individual in the sample (not scienti cally interesting.) Revise: hours spent revising for the math test. test: score on a math test on a scale from 0 to 100. Anxiety: \math anxiety" on a scale from 0 to 100 (100 is most anxious.) Gender: female or male.