Last-minute polls often produce different results from earlier polls. What is the best reasoning behind this?
  1. An increase in sampling errors
  2. Lack of proper questions
  3. Lack of random controls
  4. Use of different questions
Explanation
Answer: A - An increase in sampling errors is the most probable reasoning why last-minute polls often produce different results from earlier polls. Closer to a voting deadline, polls tend to have large problems such as skewed responses or rushed data, as people are being forced to make a decision or produce results. Larger numbers, questions, or controls are usually not really at stake-even in last-minute polling.
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