For second one the answer is 14
        
                    
             
        
        
        
Answer:
A about ten percent of the town is left handed
Step-by-step explanation:
20 of 200 is ten percent and this town could be an outlier in left handed populations.
 
        
             
        
        
        
Answer:
yes because it says all angles are the same 
 
        
             
        
        
        
Answer:
 The Null hypothesis is a claim the researcher is trying to disprove. (I think)
Step-by-step explanation:
The null hypothesis states that there is no relationship between the two variables being studied (one variable does not affect the other). It states results are due to chance and are not significant in terms of supporting the idea being investigated.