Find the number of outcomes in the complement of the given event.
Out of 344
high school students in their senior year, 175
are left-handed.
The complement of the event "students who are left-handed" would be "students who are not left-handed."
To find the number of outcomes in the complement, we subtract the number of students who are left-handed from the total number of students.
Total number of students = 344
Number of left-handed students = 175
Number of students who are not left-handed = 344 - 175 = 169
Therefore, there are 169 outcomes in the complement of the event "students who are left-handed".