A variable that we purposefully change or manipulate is called the independent variable. The thing that changes in response is called the dependent variable. This creates a cause and effect relationship.
Medicare Eligibility Requirements. To be entitled to Medicare, you must be a U.S. citizen or a permanent legal resident, and answer yes to at least one (1) of the following questions:
If you are a worker, you require at least 40 credits to qualify for Medicare entitlement. These credits cater for hospital insurance as provided in Medicare Part A. If you are married and your spouse has earned the required 40 credits, you can also enjoy the Medical entitlement of your husband.