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x is a normally distributed random variable with mean 47 and standard deviation 19. What is the probability that x is between 9 and 85?

x is a normally distributed random variable with mean 47 and standard deviation 19. What is the probability that x is between 9 and 85? Use the 0.68-0.95-0.997 rule and write your answer as a decimal. Round to the nearest thousandth if necessary

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