According to a study done by an educational research organization, the median tuition cost for a private university was $32,500 per year and $17,350 per year for a public university, whereas the mean was $34,000 for private universities and $19,500 for public universities.

(a) Does this suggest that the distribution of tuition for public and private universities is symmetric, or skewed to the right, or skewed to the left? Explain.

(b) The results refer to 25 private universities and 23 public universities. Find the overall mean.