It is known that 80% of the customers at a DIY store own a discount card. Customers queuing at a checkout are asked if they own a discount card.
a. Find the probability that the first customer who owns a discount card is:
i. The third customer asked
ii. Not one of the first four customers asked.
b. Given that 10% of the customers with discount cards forget to bring them to the store, find the probability that the first customer who owns a discount card and remembered to bring it to the store is the second customer asked.
Enjoy 24/7 customer support for any queries or concerns you have.
Phone: +1 213 3772458
Email: support@gradeessays.com