First one is 7.73 (23.19/3) 
Second one is 14.04 ((19.71/7.3) x 5.2)
        
                    
             
        
        
        
Answer:

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution  and for this case we know that the distribution is given by:
 and for this case we know that the distribution is given by:

And the standard error would be:

And replacing we got:

Step-by-step explanation:
For this case we know the population deviation given by:

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution  and for this case we know that the distribution is given by:
 and for this case we know that the distribution is given by:

And the standard error would be:

And replacing we got:

 
 
        
             
        
        
        
<span>B. sam forgot to multiply. 
 The correct answer is
</span> x^2*y=(7^<span>2)*(9)=49*9=441 </span> 
        
             
        
        
        
Answer:
both are the same 
Step-by-step explanation:
2.0 = 2
hope this helps ^-^
 
        
                    
             
        
        
        
Answer:
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