Smartphones: A poll agency reports that  24%  of teenagers aged  −1217  own smartphones. A random sample of  75  teenagers is drawn. Round your answers to at least four decimal places as needed.  Find the standard deviation  σp . The standard deviation  σp  is

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Smartphones: A poll agency reports that 

24%

 of teenagers aged 

−1217

 own smartphones. A random sample of 

75

 teenagers is drawn. Round your answers to at least four decimal places as needed.

 Find the standard deviation 
σp
.
The standard deviation 
σp
 is
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