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Question 3 A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 143.5- cm and a standard

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Question 3 A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 143.5- cm and a standard deviation of 2.2-cm. Find the probability that the length of a randomly selected steel rod is between 138.7-cm and 140.2-cm. P(138.7-cm

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