Question: a. How many different postal codes are possible if each code is two sequences, the first sequence being letter-number-letter (for example, El A) and the

a. How many different postal codes are possible if each code is two sequences, the first sequence being letter-number-letter (for example, El A) and the second sequence being number-letter-number (for example, 3E9)?
b. If a computer randomly generates postal codes, what is the probability that it will produce your postal code?

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