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Question
According to a hospital administrator, historical records over the past 10 years have shown that 20 percent of the major surgery patients are dissatisfied with after-surgery care in the hospital. A scientific poll based on 400 hospital patients has just been conducted. What is the probability that at least 70 patients will not be satisfied with the after-surgery care?A. 89.44%
B. 39.44%
C. 10.56%
D. 78.88%
E. 84.49%
Answer
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