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The mean clotting time of blood is 7.45 seconds with a standard deviation of 3.6 seconds....

The mean clotting time of blood is 7.45 seconds with a standard deviation of 3.6 seconds. What is the probability that an​ individual's clotting time will be less than 4 seconds or greater than 13 ​seconds? Assume a normal distribution. Find the probability.

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