Recipe preferences by consumers
Talk about survey data — measurements from a sample of individuals where we observe but do not intervene. Mention the use of sample proportions as summary statistics.
The diagram shows sample-to-sample variability in a sample proportion. Ask the question:
How much should you trust a statistic that would be different if you had used different people?
then say that a major role of statistics is to understand and describe the randomness of such summaries statistics.