Answer:
For example, a survey of high school students to measure teenage use of illegal drugs will be a biased sample because it does not include home-schooled students or dropouts. A sample is also biased if certain members are underrepresented or overrepresented relative to others in the population.
Explanation:
 
        
                    
             
        
        
        
Answer:
Ada's ability to survive the bitter cold of Wrangel Island without much food or clothing was. a miracle because she was the only one who survived.