Notice the picture below, see the length "l"?
well 

solve for "w", to find the width,
what's the length?  well, l = 11/4 w
 
        
             
        
        
        
The manager at a golf course found that the population mean length of the holes at the golf courses is 415.9 yd. In this context, is the number 415.9 a parameter or a statistic?
Answer: The number 415.9 is a parameter because it represents the population characteristic. 
<u>Explanation:</u>
Parameter: Parameters are numbers that summarize the entire population. For example the population mean summarizes the entire population, similarly population standard deviation describes the characteristic of entire population.
Statistic: Statistic are numbers that describes the sample. For example, the sample mean summarizes the sample which is drawn from the population, similarly the sample standard deviation describes the characteristic of sample.
Therefore, the population mean length of the holes at the golf courses (415.9 yd) is parameter.
 
        
             
        
        
        
Answer:
Any fraction
Step-by-step explanation:
Example:
(2/3)² = 4/9 
2/3 > 4/9
 
        
                    
             
        
        
        
The answer would have to be 30%