4. In a factory, the length of a certain metal bar is normally distributed, and has...

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4. In a factory, the length of a certain metal bar is normally distributed, and has a mean of 50 cm, and a standard deviation of 0.07 cm. Two bars are selected and the measurements are 50.05cm and 49.99 cm. To calculate the probability that the length falls between 50.05 and 49.99, we need to standardize the normal distribution by calculating the z- scores. What are the z-scores of the lengths of the two bars?

math Statistics-And-Probability

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Answer 1

Answer #1

イ yY X冫5o.OS n 50.05-50 0.07 ス 04143 OES 49.qqーSo 0.01 ズス--o. 143

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