1. Spam
2. Phishing
3. True
Answer:
This is a multicolinearity problem and the student should determine the variable(s) that cause(s) the problem and remove it.
Explanation:
This information means that there exists a linear combination between the independent variables. The problem might have developed due to multicolinearity producing almost perfectly linearly dependent columns.
This could also be as a results of single matrix created when the student use an incorrect indicator variables and included an additional indicator column which created linearly dependent columns.
Answer:
The answer to this question is True.
Explanation:
If we allow every communication this will not be a great idea if we want better security and better productivity.
There will be a lot of spam communications so the productivity and the security will also degrade because of that.
So if we want better productivity and security we have to allow a certain number of connections.
Hence the answer to this question is True.