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A strength training program was administered to a population of marine recruits. The change in number of push-ups completed between the beginning and end of

A strength training program was administered to a population of marine recruits. The change in number of push-upscompletedbetween the beginning and end of the program was approximately normally distributed with a mean improvement of 7.2 with a standard deviation of 2.5.What is the probability that a randomly selected recruit improved by more than 10 push-ups?

a. 0.131

b.0.869

c.indeterminate

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