Consider the hospital emergency department visits shown in table below. People may leave without being seen by a physician, and those visits are denoted as LWBS. The remaining visits are serviced at the emergency department, and the visitor may or may not be admitted for a stay in the hospital. Assume that the record is reviewed from a visit selected randomly from the table. a. What is the probability that the visit is LWBS or that the visit is from hospital 2? b. What is the probability that the visit is not LWBS and the hospital is 1 or 3?

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