<p>Customers at a supermarket pay for their purchases either by cash or credit card. The probability of a randomly chosen customer paying by credit card is $0.3$. Find the probability that, on a randomly chosen day, there are more than $6$ customers among the first $20$ customers who pay by credit card and the fifth customer is the second customer who does so.</p>

Customers at a supermarket pay for their purchases either by cash or credit card. The probability of a randomly chosen customer paying by credit card is $0.3$. Find the probability that, on a randomly chosen day, there are more than $6$ customers among the first $20$ customers who pay by credit card and the fifth customer is the second customer who does so.

Binomial Distribution - General

Binomial Distribution

H2 Math

International Baccalaureate Higher Level Mathematics

2006 ACJC P2 Q10 (i)

2006 ACJC P2 Q10 (i)

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