If today there are 8 people in a class of 17 people
Total number of people = 17
Number of student present = 8
Number of student absent (17 - 8)= 9
tomorrow if the same students don't show up for class, number of students absent = 9
Probability of the attendance = Number of student present/ Total number of studnets
Probability of attendance = 8/17
Convert the fraction 8/17 into decimal
8/17 = 0.470
Probability of attendance is 0.470