• Support PF! Buy your school textbooks, materials and every day products Here!

Probability question on bank customers

  • Thread starter aaa59
  • Start date
  • #1
8
0
The probability of a customer arriving in a bank per minute is 0.9. How many customers will arrive in 10 minutes?

Thanks
Ashish
 

Answers and Replies

  • #2
berkeman
Mentor
56,611
6,511
What are your thoughts on how to approach this question? Does the probability of a customer arriving in the first minute affect the probability of a customer arriving in the second minute? What is this property called, and how does it help guide you to the answer here?
 
  • #3
8
0
I have absolutely no idea
 
  • #4
8
0
I would say that in 1 minute there is a 90% chance that a customer may arrive, so in 10 minutes the number of customers I would expect is 9.
 
  • #5
360
21
Correct. On average...
 
  • #6
8
0
thanks
 
  • #7
5
0
Think about what a probability is. Then think about how the probability of 0.9 was determined. At that point the answer is obvious.
 

Related Threads for: Probability question on bank customers

  • Last Post
Replies
2
Views
1K
Replies
3
Views
1K
  • Last Post
Replies
3
Views
948
Replies
4
Views
1K
Replies
15
Views
2K
Top