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Standard Deviation, Normal Distribution and the 68-95-99.7 Rule
In this video, Dr. Kushner breaks down standard deviation, and discusses the 68-95-97.7 Rule as a memory technique to identify the %'s on a normal distribution. 📝Practice Question #2 Answer: Mean: 3.0 SD = .2 Your normal distribution below the mean should be 3.0, 2.8, 2.6, 2.4. ANSWER: 13.5% + 2.35% + .15% = 16% of students have a GPA lower ...
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