Posted by Madmazel on Thursday, May 27, 2010 at 10:52am.
The height of 16monthold 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  Shelia, Tuesday, July 24, 2012 at 5:38pm
hi, ok try using the zscore tables and find 0.75 and find the zscore that corresponds. use that with the formula. except you get one value and you need a range. im not sure????