Question: A random sample of 45 instructors from different state universities were selected randomly and asked whether they are happy with their teaching loads. The responses

A random sample of 45 instructors from different state universities were selected randomly and asked whether they are happy with their teaching loads. The responses of 32 were negative. If Drs. Smith, Brown, and Jones were among those questioned, what is the probability that all three of them gave negative responses?

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