Answer:
C. 0.99 per day
Step-by-step explanation:
I calculated it logically
 
        
             
        
        
        
Why not look up "standard deviation" yourself, to be sure?  But yes, the std. dev. is the sqrt of the variance.
        
             
        
        
        
Answer:
192.
Step-by-step explanation:
The formula you can write is y=6x, with x being the sequence number and y being the value of that number. Plugging in 32, the 32nd number would be 192.
 
        
             
        
        
        
Answer:
( -  , - 3)
, - 3)
Step-by-step explanation:
Given
19x = 15y and (x, - 3 ), that is y = - 3 
Substitute y = - 3 into the equation
19x = 15(- 3) = - 45 ( divide both sides by 19 )
x = - 