Below is the linear programming for the Shortest Path Problem.

Considering the second contraint in the mathematical model :

ixjiixij=0js,jt

What is the logic behind this contraint?

To make sure there is only one solution

To make sure that the path is connected between the nodes

To make sure the variable stays binary

This contraint is redundant and not necessary

Which of the following statements are true? (select all that apply)

The shape of a student t-distribution curve depends on its degrees of freedom

If a set of random variables are mutually exclusive, this means they are independent and identically distributed

For a sample of size 30, if c is the confidence level and L is the confidence interval, increasing the confidence level c leads to a narrower confidence interval L

Well connected cities have a lower circuity factor compared to the cities with mountain ranges

unanswered