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Anna conducted a survey of the number of people in her yoga class with glasses or contacts. The people in the yoga classes were randomly distributed, and there were 256 people in all the classes. If Anna counted 24 out of 32 people in her class with glasses or contacts, how many people would be expected to have glasses or contacts in all the classes?

Guest Apr 10, 2017
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Try using the same approach as indicated here: https://web2.0calc.com/questions/math_76239#r1 

 

 

 

Testing:

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Alan  Apr 10, 2017
edited by Alan  Apr 10, 2017
edited by Melody  Apr 11, 2017

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