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In a certain distribution, the mean is 70 with a standard deviation of 3. At least At least of the numbers in the distribution are

In a certain distribution, the mean is 70 with a standard deviation of 3. At least At least of the numbers in the distribution are between 64 and 76. what fraction of the numbers are between the following pair of numbers? (Type an integer or simplified fraction.) 64 and 76

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