Final answer:
The probability that a randomly chosen two-digit number is 23 is 1 out of 90, or 1.11%.
Step-by-step explanation:
To find the probability that a randomly chosen two-digit number is 23, we need to consider the total number of two-digit numbers and the fact that 23 is one specific number in this set. Two-digit numbers range from 10 to 99, giving us 90 possible two-digit numbers. Thus, the probability of randomly selecting 23 is 1 out of 90.
The formula for this probability is P(Number is 23) = 1/90. Therefore, the probability is 0.0111 (or 1.11%), which is the decimal equivalent of 1/90.