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Test: AP Statistics
Alex took a test in physics and scored a 35. The class average was 27 and the standard deviation was 5.
Noah took a chemistry test and scored an 82. The class average was 70 and the standard deviation was 8.
1. | Show that Alex had the better performance by calculating - 1) Alex's standard normal percentile and 2) Noah's standard normal percentile |
Alex = .901
Noah = .926
Alex = .923
Noah = .911
Alex = .855
Noah = .844
Alex = .945
Noah = .933
Alex = .778
Noah = .723
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