Final answer:
The probability that the letter chosen is also in the six-character string is 1.
Step-by-step explanation:
To find the probability that a randomly chosen letter from the alphabet is also in a six-character string of letters, we need to consider the total number of possible outcomes and the number of favorable outcomes.
There are 26 letters in the alphabet, so the number of possible outcomes is 26.
Since the six-character string of letters can contain any letter from the alphabet, the number of favorable outcomes is also 26.
Therefore, the probability is given by:
P = (Number of favorable outcomes)/(Number of possible outcomes) = 26/26 = 1