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A study of 100 flights at Pearson airport revealed that 80 of them arrived on time. The total number of flights at Pearson are 1,000.

A study of 100 flights at Pearson airport revealed that 80 of them arrived on time. The total number of flights at Pearson are 1,000.

  1. What is the true population percentage of flights arriving late?

How many flights arrive late?

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