A toy company wanted to see if people who purchased their train set were satisfied with it. They decided to send surveys to the first 1,500 people who bought the train set. What are the conditions of this sample?
The conditions of this sample are
,
, and
1. The sample is self-selected, as it only includes people who purchased the train set from that specific company.
2. The sample size is relatively small, with only 1,500 surveys being sent out.
3. The sample may not be representative of all customers who purchased the train set, as it only includes the first 1,500 people who bought it.