Question

Part B If you were to randomly survey 500 people each from the two largest US cities, would this be a random sample? Why or why not?

Part C If you were to randomly survey 50 people from the phone books of 20 randomly chosen cities, would this be a random sample? Why or why not?

Part D If you were to randomly survey 10 people at 100 random eyeglasses stores across the country, would this be a random sample? Why or why not?

Answer 1

B. It still might be random becuase you could still randomly pick people from those areas. C. Yes, because you are still randomly selcting from the phone books and from 20 random cities. D. No, Your just chosing people random people from the eyglasses store which means your chosing the probabilty of the people who only where glasses.

Explanation: