<span>Line graphs are used to display data or information that changes continuously over time. hope that helped</span>
        
                    
             
        
        
        
3/8 of a fraction is the amount of water that was split 
        
             
        
        
        
The mean = 2,000
s = Sigma ( standard deviation ) = 300
M - 2 s = 2,000- 2 * 300 = 2,000 - 600 = 1,400
M + 2 s = 2,000 + 2 * 300 = 2,000 + 600 = 2,600
Answer.
Useful life of light bulbs within 2 standard deviations of the mean is:
A ) Between 1,400 and 2,600 hours