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Teams of students compete in a robotics contest. The times for the robots to complete...

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Teams of students compete in a robotics contest. The times for the robots to complete an obstacle course are normally distributed. The mean time for completion is 60 seconds, and the standard deviation is 4 seconds. Approximately what percentage of the robots will complete the course in 56 to 64 seconds?A. 68%B. 60%C.50%D 8%

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