I am working full time. What are my options to satisfy the requirement for a practical experience?
You may already be working in an environment which provides opportunities for work that is related to mathematics and statistics. In that case, the requirement can be satisfied by preparing a written report on a suitable project and giving an oral presentation. If you have done that kind of work in the past but are doing something else now or if your current work cannot be shared with others due to confidentiality requirements, you can also satisfy the requirement by writing a report and giving a presentation on past work. You can also enroll in the consulting clinic, either during the regular academic year or during the summer, and present a report on some substantial consulting projects.