Answer:
We can find the critical value 
And for this case if the confidence increase the critical value increase so then this statement is True
Step-by-step explanation:
For a confidence level given c, we can find the significance level like this:

And with the degrees of freedom given by:
 
 
We can find the critical value 
And for this case if the confidence increase the critical value increase so then this statement is True
 
        
             
        
        
        
Well if there are 3 outcomes just add the two other outcomes and subtract from 1 
so 0.4+0.25=0.35 
so the third outcomes has a 0.35 chance of happening or 35% 
        
             
        
        
        
Answer:b
Step-by-step explanation: