Indicate whether each of the following distributions is positively or negatively skewed? I have the answers and need to confirm if I am correct. Thank you.

a. income of taxpayers has a mean of $48k & a median of $43K.

My answer: positively

b. GPAs for all students at a college has a mean of 3.01 & a median of 3.20.

My answer: negatively

c. number of "romantic affairs" novel reported anonymously by young adults has a mean of 2.6 & a median of 1.9 affairs.

My answer: positively

d. daily TV viewing times for preschool children has a mean of 55 minutes & a median of 73 minutes.

My answer: negatively

Thank you.