Anna mixes the letters S, E, L, E,C,T,E and D thoroughly. Without looking, Mary draws one letter. Expressed as a fraction, decimal, and percentage, what is the probability that E will not be the letter mary selects?

Question

anonymous · Answer

how many letters are not E ----- 5 letters are not E
total of all letters ---- 8 letters in total

probability that E will not be selected :
5/8 or 0.625 or 62.5%

mathmale · Answer

Hint:  It'd be easier to determine "the probability that Mary draws an E."

Then, to express the probability that Mary does NOT draw an E would be 

1 - P(Mary draws an E).

mathmale · Answer

I agree with kelliegirl's response.  Use whichever approach is easier for you to understand.

anonymous · Answer

:) confirmation is always good

mathmale · Answer

:)