Answer:12 : 6	22 : 11	32 : 16	
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Zero
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Step-by-step explanation:
For every £2 Jan gets, Cole gets £3.
10 ÷ 2 (Jan) × 3 (Cole) = 15
 
        
             
        
        
        
Answer:
 
 
And the confidence interval would be:

Step-by-step explanation:
Information given:
 represent the sample size
 represent the sample size
 represent the estimated proportion
 represent the estimated proportion
The confidence interval would be given by this formula
 
For the 98% confidence interval the value of  and
 and  , with that value we can find the quantile required for the interval in the normal standard distribution.
, with that value we can find the quantile required for the interval in the normal standard distribution.
 
And replacing into the confidence interval formula we got:
 
 
And the confidence interval would be:
