David's gasoline station offers 4 cents off per gallon 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

Question

Quizplus · Accepted Answer

The probability that no more than twenty out of twenty-five customers pay in cash is very high, given that only 40% of customers typically pay in cash. Thus, the probability is approximately 1.0.

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