A marketing researcher at a computer company did a study examining user satisfaction with two operating systems.A total of 300 users were surveyed on the type of operating system used and their satisfaction with it.Use the following data set to answer questions 6-14: 
What is the probability that a user is satisfied with either system 9 or system 10?
Definitions:
Private Psychotherapy
An arrangement in which a person directly pays a therapist for counseling services.
Community Mental Health Programs
Initiatives aimed at providing mental health services and support to people within their local communities, often focusing on outreach, prevention, and accessibility.
Prevention
Measures or actions taken to reduce the risk or stop the development of a disease, injury, or other adverse health outcomes.
Managed Care Program
A system of health care coverage in which the insurance company largely controls the nature, scope, and cost of medical or psychological services.
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