a survey is conducted to determine the most c...
a survey is conducted to determine the most common reason people own a cell phone. a company sent out a survey to customers between the ages of 20 and 30. based on the responses, the company concluded that people own a cell phone for messaging purposes. is this conclusion valid? (1 point)\n\nno, because not all people who own a cell phone have the same probability of being selected.\nno, because the sample includes customers of too many different ages.\nyes, because the sample includes male and female customers.\nyes, because the sample includes all customers between the ages of 20 and 30.
Answer
# Brief Explanations:
The survey only targeted customers aged 20 - 30. People outside this age - group who own cell phones were not part of the sample. So, not all cell - phone owners had an equal chance of being selected, which makes the conclusion invalid.
# Answer:
No, because not all people who own a cell phone have the same probability of being selected.