A union for sets means you combine the two sets together. The symbol of a union is ∪, so we can represent this question with K <span>∪ L.
You simply must combine the two sets together without repeating any of the same numbers.
K </span><span>∪ L = {2, 3, 5, 7, 8}.</span>
        
             
        
        
        
Answer:
So for 93 days and each day is one hour you would get 5580 minutes
Step-by-step explanation:
All you would have to do is count the days of summer then multiply it by 60 and you wuld get 5580.
 
        
             
        
        
        
Answer:
0.0109570279061
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Since the Confidence is 0.90 or 90%, the value of  and
 and  , and the critical value would be
, and the critical value would be  
And replacing we got
 
    
 
    
For the 95% confidence the critical value is  
 
    
 
    
Step-by-step explanation:
Information given
 represent the sample mean
 represent the sample mean 
 population mean (variable of interest)
 population mean (variable of interest)
s¿4.2 represent the sample standard deviation
n¿65 represent the sample size  
Confidence interval
The confidence interval for the mean is given by the following formula:
 (1)
   (1)
The degrees of freedom are given by:
 
Since the Confidence is 0.90 or 90%, the value of  and
 and  , and the critical value would be
, and the critical value would be  
And replacing we got
 
    
 
    
For the 95% confidence the critical value is  
 
    
