You mix the letters M, A, T, H, E, M, A, T, I, C, A, and L thoroughly. Without looking, you draw one letter. Find the probability P(A). Write the probability as:
a. a fraction in simplest form
b. a decimal
c. a percent
There are 12 letters in all, with 3 of them being A's. Thus the probability of selecting an A can be found by dividing the number of A's by the number of total letters:
a. P(A) = 3/12 = 1/4
b. P(A) = 0.25
c. P(A) = 25%