A parking lot has seventy-three parking spaces numbered from 1 to 73. There are no cars in the parking lot when Jillian pulls in and randomly parks. What is the probability that the number on the parking space where she parks is greater than or equal to 27?

How many parking spaces have a number between 27 and 73? (Include the number 27 in that.)

How many parking spaces are there altogether, numbers 1 to 73?

The ratio of those numbers will give you the probability, assuming that "randomly parks" means the chance of Jillian parking in any of the spaces is equal.

To find the probability that the number on the parking space where Jillian parks is greater than or equal to 27, we need to determine the number of favorable outcomes and the total number of possible outcomes.

The number of favorable outcomes is the number of parking spaces that are greater than or equal to 27. Since there are a total of 73 parking spaces and the numbers range from 1 to 73, there are 73 - 27 + 1 = 47 parking spaces that are greater than or equal to 27.

The total number of possible outcomes is the total number of parking spaces, which is 73.

Therefore, the probability that the number on the parking space where Jillian parks is greater than or equal to 27 is 47/73.

To find the probability that the number on the parking space where Jillian parks is greater than or equal to 27, we need to determine the number of favorable outcomes (parking spaces numbering 27 to 73) and the total number of possible outcomes (all parking spaces).

Step 1: Determine the number of favorable outcomes.
Since the number on the parking space where Jillian parks needs to be greater than or equal to 27, there are 73 - 27 + 1 = 47 possible parking spaces she can park in.

Step 2: Determine the total number of possible outcomes.
There are 73 parking spaces in total.

Step 3: Calculate the probability.
The probability is the ratio of favorable outcomes to total outcomes.
Probability = Number of favorable outcomes / Total number of outcomes

Probability = 47 / 73 ≈ 0.644

Therefore, the probability that Jillian parks in a space with a number greater than or equal to 27 is approximately 0.644 or 64.4%.