Answer:
a)
Step-by-step explanation:
The standard deviation is a measure that tells us how far measures tend to be from the mean. A low standard deviation gives us values closer to  the mean than a high standard deviation. Usually 68% of the data falls within one standard deviation of the set.
Thus, the most accurate answer would be a) Around 70% of the scores will be located within one standard deviation of the mean
 
        
             
        
        
        
Answer:
no entiendo nada eso es inglés y pus yo no lo entendo 
 
        
             
        
        
        
You are correct
12.2^2 x 3.14 x 6.1 = 2850.9
        
                    
             
        
        
        
Answer:
2/7
Please vote for Brainliest and I hope this helps!