The Purplemath Forums

Hello :wave: I need help on probabilty... First things first: What do "and" and "or" mean? I am confused if...and=multiplication | or=adding the two probabilities together. Does mutually exclusive mean that the two events can't happen at the same time? And I don't know what are o...

Hi again!
What is a box-and-whisker plot and what is a scatter plot?
I have a fundamental test coming up and I have forgotten about it. (My teacher skipped the lessons, actually)
Thank you!