Answer:
P = 0.75
Explanation:
The probability that a student either does sports or works can be calculated as the number of students that do sports or work divided by the total number of students.
So, taking into account the table, the number of students that do sports is:
Sports = 20 + 20 + 25 = 65
The number of students that work is:
Work = 3 + 2 + 5 = 10
The total number of students is:
Total = 20 + 20 + 25 + 7 + 13 + 5 + 3 + 2 + 5
Total = 100
Therefore, the probability is equal to:
[tex]P=\frac{65+10}{100}=\frac{75}{100}=0.75[/tex]
So, the answer is 0.75
