Answer:
The standard deviation is used in conjunction with the mean to numerically describe distributions that are bell shaped. The mean measures the center of the distribution, while the standard deviation measures the spread of the distribution. 
Step-by-step explanation:
Problems of normally distributed samples can be solved using the z-score formula.
In a set with mean  and standard deviation
 and standard deviation  , the zscore of a measure X is given by
, the zscore of a measure X is given by

The mean is the average value of the measures while the standard deviation measures how spread the measures are from the mean. So
The standard deviation is used in conjunction with the mean to numerically describe distributions that are bell shaped. The mean measures the center of the distribution, while the standard deviation measures the spread of the distribution. 
 
        
             
        
        
        
327+425+550+486 is 1788 so to get the answer you need to divide it by 6
        
                    
             
        
        
        
<span>1200 = 5000*4r
1200/20000 = r = .06 0r 6%</span>
        
             
        
        
        
Answer:
No, its not equivalent
1/2 is equivalent though
Please mark as brainliest
 
        
                    
             
        
        
        
The answer is 1.
Rise over run :)