Which of the following functions are skewed? (Edited for clarity.)
- \(g(a,b):=a-b\)
- \(h(a,b):=b-a\)
- \(i(a,b):=a+b\)
Answer:
- Not skewed: E.g. \(a=3,b=4\). The function \(g(a,b)\) will not be greater than zero
- Is skewed: True if both numbers are negative, both are positive or if one is negative.
- Not skewed: If both numbers are negative, the function will not be greater than zero.