Question: 1. If data are normally distributed with mean 8 and standard deviation 2 , what percent of the data falls between 4 and (12 ?)
1. If data are normally distributed with mean 8 and standard deviation 2 , what percent of the data falls between 4 and \(12 ?\)
2. If data are normally distributed with mean 25 and standard deviation 5 , what percent of the data falls between 20 and 30 ?
3. If data are normally distributed with mean 200 and standard deviation 15 , what percent of the data falls between 155 and 245 ?
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