Final answer:
To find the probability that a student chosen randomly from the class has an A, we need to calculate the ratio of the number of students with an A to the total number of students in the class. The probability is 7/19, approximately 0.3684.
Step-by-step explanation:
To find the probability that a student chosen randomly from the class has an A, we need to calculate the ratio of the number of students with an A to the total number of students in the class.
From the data table, we can see that there are 2 females and 5 males who have an A. So, the total number of students with an A is 2 + 5 = 7.
The total number of students in the class is the sum of the students who have an A and those who do not have an A, which is 7 + 3 + 9 = 19.
Therefore, the probability that a student chosen randomly from the class has an A is 7/19, which is approximately 0.3684.