Acollege student conducts a survey to find out the average age at which human males start to grow facial hair. the student asks each subject of the survey how old he was (in months) when he first noticed hair on his face. six boys from a local high school were surveyed, and the average value found is 148 months. is using this data a reliable way to determine the average age of facial hair growth for human males around the world?

1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area