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Data management grad e12

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The height of 16-month-old seedlings are normally distributed with a mean of 31.5 cm and standard deviation of 10 cm. What is the height above which 75% of the seedlings have grown?

  • Data management grad e12 -

    hi, ok try using the z-score tables and find 0.75 and find the z-score that corresponds. use that with the formula. except you get one value and you need a range. im not sure????

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