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A politital polling agency predicts candidate A will win an election with 54% of the votes. their poll has a margin of error of 4% both above and below the predicted percent. Which inequality represents the predicted the predicted possible percent of votes, X , for candidate A? show work

 

A. 50< x < 58

B. > 50 or x < 58

C. x > 52 or x < 56

D. 52< x < 56

 Jan 3, 2017

Best Answer 

 #1
avatar+128708 
+5

A. 50 ≤ x ≤ 58

 

If x = 54.....we have...

 

54 − 4   = 50   and   54  + 4  = 58

 

And the %  can fall between these two values, inclusively

 

 

 

cool cool cool

 Jan 3, 2017
 #1
avatar+128708 
+5
Best Answer

A. 50 ≤ x ≤ 58

 

If x = 54.....we have...

 

54 − 4   = 50   and   54  + 4  = 58

 

And the %  can fall between these two values, inclusively

 

 

 

cool cool cool

CPhill Jan 3, 2017

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