David's Gasoline Station Offers 4 Cents Off Per Litre If

question 91

Multiple Choice

David's gasoline station offers 4 cents off per litre if the customer pays in cash and does not use a
Credit card. Past evidence indicates that 40% of all customers pay in cash. During a one-hour period
Twenty-five customers buy gasoline at this station.
What is the probability that no more than twenty pay in cash?

• A) 0.0
• B) 0.1
• C) 0.9
• D) 1.0

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