How does the contestant of Wheel of Fortune use probability?

Answer 1

When they choose the letters R, S, T, L & N first they are choosing the most probable letters. When they choose to purchase an I after seeing the NG at the end of a word they are choosing the most probable vowel at that location and able that the vowel may still be used elsewhere.When they purchase the E vowel first the are buying the vowel that is used most. When they guess a H after seeing a three letter word beginning with a T they are not using the letter with the highest probability which would be buying the E to confirm that the word is likely the and if it is not the E is likely used elsewhere.