I’m not sure if this is correct but
you have used 3/8 of the plants so you will have 5/8 left to use
Formula:





(There are two sides for the length)


(There are two sides for the width)
The width of the desk is 15 inches
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-Geekhawk
Sample Response: If the data is collected in a biased manner, the graph could be skewed. Also, if the number of observations is too small, the graph can be skewed. To ensure the data is not skewed, collect a large representative unbiased sample
Since the denominator cannot be zero, you can set 4z+1=0 to find the excluded values.
4z+1=0
4z=-1
z=-1/4
And thus, z cannot equal -1/4