Final answer:
The probability of a point being in the blue area on the grid can be found by using the formula P(blue) = number of blue squares / total number of squares.
Step-by-step explanation:
To find the probability that a point on the grid will be in the blue area, you can use the formula P(blue) = number of blue squares / total number of squares. This formula calculates the ratio of the number of blue squares to the total number of squares on the grid. For example, if there are 10 blue squares out of 20 squares in total, the probability of a point being in the blue area would be 10/20 = 0.5.