A sample must be a group of people who are the target of the survey question
Answer:
The correct option is 1.
Step-by-step explanation:
The set of all observations is known as populate set.
A sample is a small subset of population set that is the representative of the entire population. The sample must have sufficient size and it should include all population.
A sample must be a group of people who are the target of the survey question. This statement is true.
Therefore the correct option is 1.
A sample should have different characteristics than the population. This statement is false.
A sample must be very small. This statement is false.
A sample should include only boys or only girls. This statement is false.
Therefore options 2, 3 and 4 are incorrect.
