Complete Question 
Educational Television In a random sample of 200 people, 159 said that they watched educational television. Find the 90% confidence interval of the true proportion of people who watched educational television. Round the answers to at least three decimal places.
Answer:
The 90% confidence interval is    
       
Step-by-step explanation:
From the question we are told that 
      The sample size is  n = 200
      The number of people that watched the educational television is 
Generally the sample proportion is mathematically represented as 
                
=>               
From the question we are told the confidence level is  90% , hence the level of significance is    
        
=>    
Generally from the normal distribution table the critical value  of   is
 is  
     
Generally the margin of error is mathematically represented as  
       
=>      
=>      
Generally 95% confidence interval is mathematically represented as  
        
=>     
=>     
       
 
        
             
        
        
        
Step-by-step explanation:
Amelia got 56% of 75 so
(56/100)*75=(56*75)/100=4200/100=42
Hayden got 8/15 of 75 so
(8/15)*75=(8*75)/15=600/15=40
and Sophie that got 43 out of 75
so we see that Sophie got the highest points.
 
        
                    
             
        
        
        
This  is (x - 6)*x^1/2(x + 3)
= x^1/2 (x^2 - 3x - 18)
= x^(5/2) - 3x^(3/2) - 18x^(1/2)
        
                    
             
        
        
        
(6 • 2 - 2x + 16) + (4 • 2 + 7x - 55)
(-2x + 16 + 6 • 2) + (7x - 55 + 4 • 2)
(-2x + 16 + 12) + (7x - 55 + 8)
-2x + 28 + 7x - 47
-2x + 7x + 28 - 47
5x + (-19)
5x - 19
So the answer is 5x - 19.
        
             
        
        
        
400 Imperial pints are less than 100 Imperial gallons, 
400 pints = 50 gallons.