Twins Jean and Joan Wong are in fifth grade (different sections), and the class has been given a series of ability tests. If the scores for these ability tests are approximately normally distributed, which girl has the higher relative score on each of the skills listed? Explain your answers.

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Skill Jean: z-Score 2.0 1.0 Joan: Percentile ness Posture Agility Strength Flexibility 1.0 0.0 35 50 2