Misspelling in course notes?
Hi, I think there's a tiny error in your course notes on the page 80. For both correlation coefficients (-1 & +1) it's written "perfect negative correlation" instead of "perfect positive correlation" for +1-correlation coefficient. It's not very important, as the correct option is abvious from the text, but I just wanted to draw your attention to this detail. Thank you
Thank for the raising this issue, Diana. Working with data is very about details. I hope that the production team will correct this mistake.