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A certain university maintains a colony of male mice for research purposes. The ages of the mice are normally distributed with a mean of 60 days and a standard deviation of 5.2. Assume you randomly sample one mouse from the colony.

The probability his age will be between 55 and 70 days is ____.

1. 0.1959

2. 0.4980

3. 0.8041

4. 0.8066

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