PLZ HELP!!!! WILL GIVE BRAINLIEST!! 50 POINTS!!
A questionnaire is sent to 10,000 people, and 5,000 responded. 3,000 of the respondents say that they "love chocolate ice cream", and so we conclude that 60% of people love chocolate ice cream. What is wrong with this survey?
A. voluntary response
B. correlation and causality
C. precise numbers
D. nonresponse
