The probability the next customer pays using a debit card based on the last three weeks is 30% or 0.3.
This is the chance or likelood for an event to occur. For example, if in a city it has snowed every year on December 25th, there is a high probability it will snow this year and in the next years.
Total of a specific outcome/ total of outcomes
Based on this, let's calculate the probability the next customer pays using the debit card:
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