Answer:
The probability to not to enroll in accounting = 70%
Step-by-step explanation:
Total business students = 1000
Stats students = 200
Students with stats and accounts = 50
So, only stats student = 200 – 50 = 150
Only accounts students = 250
The probability of students not enrolled in accounting will be the probability to enrolled in stats.
Total accounts students = 50+ 250 = 300
Probability of accounts students = 300 / 1000 = 0.3 or 30 %
So, probability to not accounting student = 100% - 30% = 70%