<PRE><B>Question 930681</B>
Use the given frequency distribution to find the
 (a) class width::: 3
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 (b) class midpoint of the first class.:: (50+52)/2 = 51
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 (c) class boundaries of the first class::: 49.5 and 52.5

 Height (in inches) 
Class /Frequency,f
 50-52 /5
 53-55 /8
 56-58 /12
 59-61 /13
 62-64 /11
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Cheers,
Stan H.
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(a) 3
(b) 51
(c) 49.5-52.5
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Cheers,
Stan H.
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  </PRE>