A continuous random variable X has normal distribution with mean 21 and standard deviation 5. What is the probability that a randomly selected value of X will fall between L and U where L = 21 - 5 and U = 21 + 2*5? Enter your answer with at least two digits after the decimal, may use standard rounding rule.

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30-06-2024
Mathematics

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A continuous random variable X has normal distribution with mean 21 and standard deviation 5. What is the probability that a randomly selected value of X will fall between L and U where L = 21 - 5 and U = 21 + 2*5? Enter your answer with at least two digits after the decimal, may use standard rounding rule.

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