A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 144.3-cm and a standard deviation of 1.3-cm. For shipment, 19 steel rods are bundled together. Find the probability that the average length of a randomly selected bundle of steel rods is less than 143.9-cm. P(M143.9-cm) = Enter your answer as a number accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

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A: From the provided information, Mean (µ) = 60 Standard deviation (σ) = 14

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A: given data μ=200σ=9normal distribution P(200<x<225)=?

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A:

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A: normal distribution curve is given μ = 100σ = 15area shaded to the left of 120.

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A:

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