a. There are three N's in PENNSYLVANIA. The probability of choosing an N can be calculated as follows:
Probability of choosing an N = (Number of N's in the word) / (Total number of letters in the word)
Probability of choosing an N = 3 / 12
Probability of choosing an N = 1 / 4
Therefore, the probability of choosing an N is 1/4.
b. There are two A's in PENNSYLVANIA. The probability of choosing an A can be calculated as follows:
Probability of choosing an A = (Number of A's in the word) / (Total number of letters in the word)
Probability of choosing an A = 2 / 12
Probability of choosing an A = 1 / 6
Therefore, the probability of choosing an A is 1/6.
c. There is only one E in PENNSYLVANIA. The probability of choosing an E can be calculated as follows:
Probability of choosing an E = (Number of E's in the word) / (Total number of letters in the word)
Probability of choosing an E = 1 / 12
Therefore, the probability of choosing an E is 1/12.