Final answer:
Mimi's career approach would be known as a portfolio career, where she pursues multiple jobs or roles concurrently across different fields or industries.
Step-by-step explanation:
Mimi's career approach would be known as a portfolio career. A portfolio career refers to a work situation where an individual pursues multiple jobs or roles concurrently, often in different fields or industries. In Mimi's case, she has strong numeracy skills that allow her to easily transition between different employers and job roles, such as data management, statistical agent, and HR metrics. Her skills transcend specific employers, and she is able to leverage her abilities in various settings and tasks.