Final answer:
The probability of a place being a city and in North America can be calculated by determining the number of options that satisfy both events A and B.
Step-by-step explanation:
Let event A be The place is a city and event B be The place is in North America. To find P(A and B), we need to find the probability that a place is both a city and in North America.
In this context, the options given are: Peru, Chicago, Mexico, and Miami.
Based on the given information, we know that there are 23 countries in North America. Since Peru is a country in South America and Mexico is a country in North America, we can eliminate Peru as an option. Additionally, Chicago and Miami are cities in North America. Therefore, the options that satisfy both events A and B are Chicago and Miami.
P(A and B) = P(Chicago) + P(Miami) = 1/23 + 1/23 = 2/23.