letters

  1. L

    Probability with Permutations Question

    Hello! This is my first time posting and I would appreciate any help at all! So the problem I'm working on has to do with randomly choosing letters from the alphabet and the probabilities that they make out words. The problem reads as follows: With your eyes closed, you are randomly...
  2. S

    The probability that I am missing only one tile

    Background I recently became fascinated (really!) in this probability problem. I have done quite a bit of work to figure out the answer myself--which I am willing to share with anyone if that will help. But I haven't got an answer yet and I am also just wondering if there is anyone else out...
  3. E

    Comparing 2 groups of means ! shoud I use letters ?

    Hello, I hope everyone is doing well ! when comparing groups of means in a table, usually we express the differences in terms of letters next to each mean, like in the following example done by professor Gerard Dallal, which is dealing with four groups (A, B, C, D) My question now is : Can I...
  4. S

    Adding letters in graph for no significant difference

    Hi, does anybody now how to add letters in a graph (lineplot) in R for treatment levels that did not differ significantly from each other? I've searched the web but without any luck :shakehead Thank you!