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| Case Studies - Example |
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| How many Credit Cards are there in the World? |
There are approximately 6 billion people in the world.
Let's assume that a third live in areas where they cannot
get credit cards.
(Rural areas, poverty stricken areas, etc.)
Of the 4 billion remaining, let's assume three quarters
are adults.
(In the U.S. it's 4/5, but we have a slower birth rate
than many countries)
Of the 3 billion adults, a third don't carry credit
cards.
(They have bad credit, don't believe in credit cards, are
unemployed, etc.)
Of the 2 billion adults who carry credit cards, each
carries on average 3 cards.
(Visa, Mastercard, American Express)
Resulting in 6 billion credit cards in the world.
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