Yes indeed, Im sure they are
        
                    
             
        
        
        
Answer:
Quota sampling
Explanation:
Quota sampling is a form of sampling techniques used in carrying out research studies. It involves, the use of special or specific characteristics to determine the respondents to pick by the researcher. After that, a required sample size is then picked from the population of interest. It is considered to be a non-probability sampling procedure.
Hence, in this case, when Ingrid first of all, used a certain characteristics to pick participants, the characteristics is participants from General Psychology Classes only.
The she will pick from the General Psychology Classes only, a certain proportion that will reflect University population in terms of ethnicity. 
Therefore, this technique or sampling procedure is termed as QUOTA SAMPLING.
 
        
             
        
        
        
A the mailing of firearms act I’m pretty sure
        
             
        
        
        
Answer:
although it is possible to have more than one state, it is also possible to have only one state
Explanation: