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Farmer Macdonald grows soybeans. Several weeks after planting, she measures the heights of 30 plants at random. The mean of the sample is 59.1cm with
- Farmer Macdonald grows soybeans. Several weeks after planting, she measures the heights of 30 plants at random. The mean of the sample is 59.1cm with a standard deviation of 6.07cm. What is the probability that a given plant is either less then 45cm in height or greater than 75cm in height?
- A normally distributed variable has a mean of 75 and a standard deviation of 2. What is the z- score for 81?
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Introduction to Probability
Authors: Mark Daniel Ward, Ellen Gundlach
1st edition
716771098, 978-1319060893, 1319060897, 978-0716771098
