1-24 Counting These exercises involve counting.
License Plates The Yukon Territory in Canada uses a license-plate system for automobiles that consists of two letters followed by three numbers. Explain how we can know that fewer than 700,000 autos are licensed in the Yukon.
That fewer than autos are licensed in the Yukon.
Fundamental counting principle:
If , …. are events that occur in order and if event can occur in ways (). Then the sequence of events can occur in order in ways.
The choices for the first place is , so is . The choices for the second place is , so is . The choices for the third place is , so is . The choices for the fourth place is , so is . The choices for the fifth place is , so is
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