A clothing store owner finds that 35% of the customers entering the store ask an assistant for help and that 20% of the customers make a purchase
View the step-by-step solution to:

Question

A clothing store owner finds that 35% of the customers entering the store ask an assistant for help and that 20%

of the customers make a purchase before leaving. It is also found that 50% of all customers who ask for assistance make a purchase.


a) What is the probability that a randomly selected customer asks an assistant for help and makes a purchase?  


b) What is the probability that a randomly selected customer asks an assistant for help or makes a purchase?


c) What is the probability that a randomly selected customer asks an assistant for help and does not make a purchase?


d) Are the events asks an assistant for help and makes a purchase independent? Why?


e) Are the events asks an assistant for help and makes a purchase mutually exclusive? Why?


f) Are the events asks an assistant for help and makes a purchase collectively exhaustive? Why?

Top Answer

Sign up to view the full answer

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

-

Educational Resources
  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question