Answer:
(d) μ and σ²/n
Step-by-step explanation:
In a sampling distribution of sample means, the mean is equal to the population mean, which is μ.
The standard deviation of the sampling distribution of sample means is given by 
σ/√n.
The variance of a distribution is the square of the standard deviation; this means the variance of the sampling distribution of sample means would be
(σ/√n)² = σ²/(√n)² = σ²/n
 
        
             
        
        
        
Answer:
2010.62
Step-by-step explanation:
the formula to find a cylinders volume is r and h so you just divide 14 and get 8, then you get the 10 and you solve for how you would usually get your cylinder volume. which is  V=πr2h=π·82·10≈2010.62
 
        
                    
             
        
        
        
That would be -2 1/2 , 3 1/2 
        
             
        
        
        
Answer:
128 degrees
Step-by-step explanation:
38+90=128