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You are given the standard deviation and mean of the weight of 50 students.

Standard deviation = 5 , Mean = 90

Approximately what percentage of the students will have a weight between 80 and 100 pounds?

Please assume it to be a normal distribution. In the normal distribution, 68% of the total population will be within one standard deviation around the mean, 95% of the total population is within 2 standard deviations and 99.7% within three standard deviations on both sides of the median.

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