The records of computer retail store show that out of the 50 customers who purchased a desktop computer last month, all but 14 also purchased a service plan that extends the warranty for an extra year. Out of the 20 customers who purchased a notebook computer last month, all but 8 purchased the same service plan.

Last month, customers of the store who purchased? _____ computers were more likely to purchase the services plan, because only _____% not purchase the service plan, whereas ____% of the customers who bought? ____ computers did not purchase the service plan.