The answer is zero times.
        
             
        
        
        
Answer:
a range of values such that the probability is C % that a rndomly selected data value is in that range
Step-by-step explanation:
complete question is: 
Select the proper interpretation of a confidence interval for a mean at a confidence level of C % . 
a range of values produced by a method such that C % of confidence intervals produced the same way contain the sample mean 
a range of values such that the probability is C % that a randomly selected data value is in that range
 a range of values that contains C % of the sample data in a very large number of samples of the same size 
a range of values constructed using a procedure that will develop a range that contains the population mean C % of the time 
a range of values such that the probability is C % that the population mean is in that range
 
        
             
        
        
        
Answer: Her measuring cup has 8.25 mL of medicine.
Step-by-step explanation:
As per given,
 In 11 mL of medicine, there are 20 drops.
That means quantity in 1 drop =  mL
 mL
Now , the quantity in 15 drops = 15 x quantity in 1 drop
= 

= 8.25 mL
Hence, her measuring cup has 8.25 mL of medicine.
 
        
             
        
        
        
Answer:
1
Step-by-step explanation:
h
 
        
                    
             
        
        
        
For the first one it is 5 x10^{8}  
and for the second one it is 0.0005 = 5 × 0.0001 = 5 × 10−4