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During a rock concert, the noise level (in decibels) in front row seats has a mean of 95dB with a standard deviation (SD) of 8dB.

During a rock concert, the noise level (in decibels) in front row seats has a mean of 95dB with a standard deviation (SD) of 8dB. Without assuming a normal distribution, find the minimum percentage of noise level readings within 3 SD of the mean. (round 2 decimal places)

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