P – EC – PP2

Would a better estimate for the following picture be 20 or 50?

P – EC – PP3

What would you use as a referent to estimate the number of people in line?

P – EC – PP4

Would a better referent be 5 or 10 for estimating the number of people in line?

P – EC – PP5

Would your estimate of people in line be more or less than 50?

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