Step-by-step explanation:
<h2>The mean is the most frequently used measure of central tendency because it uses all values in the data set to give you an average. For data from skewed distributions, the median is better than the mean because it isn't influenced by extremely large values.</h2>
The average height is
and
inches if Allen is
tall and Terrel is
tall.
How to find the average height ?
Allen height is 
Terrel height is 
And we know that 
So Allen height is

And Terrel height is

Average of the Allen and Terrel height is

And average height in feet is 
Learn more about the average height is here:
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Answer:
z= a letter before y
Step-by-step explanation: