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Gala2k [10]
2 years ago
11

Scores on the ACT exam have a N(μ = 18,σ = 6) distribution, while scores on the SAT

Mathematics
1 answer:
elena-14-01-66 [18.8K]2 years ago
3 0

Answer:

Emily has a higher relative score since her z-score is higher. This would mean she scored further above the mean than Xiaoyu.

Step-by-step explanation:

Find the z-scores by subtracting the score they got by the mean and then dividing by the standard deivation of their respective exams.

Xiaoyu:

z = \frac{27 - 18}{6} = 1.5

Emily:

z = \frac{720 - 500}{100} = 2.2

______

Emily has a higher relative score since her z-score is higher. This would mean she scored further above the mean than Xiaoyu.

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