What does a negative correlation coefficient indicate?
A) When one variable increases, the other variable decreases.
B) There is a nonlinear relationship between the two variables.
C) When one variable increases, the other variable increases by a smaller proportion.
D) A change in one variable does not lead to a change in the other variable.
Question 2
Customers arrive at an airline ticket counter at a rate of 3 customers per minute and can be served at a rate of 2 customers per minute. At the counter there is a queue with 10 customers in it.
What are the steps involved in computing the average number of customers in the system?