# Question

During fiscal 1995, Ashland Exploration drilled 7 wells in the United States and 3 in Nigeria. One of the wells in Nigeria was productive and 2 of the wells in the United States were productive. The remaining wells were dry. For a well selected at random from those drilled during fiscal 1995, determine the following probabilities:

a. P(drilled in the United States)

b. P(drilled in the United States or dry)

c. P(dry | drilled in Nigeria)

a. P(drilled in the United States)

b. P(drilled in the United States or dry)

c. P(dry | drilled in Nigeria)

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