A. For this part of the assignment, I was confused because I did not understand what the table was supposed to be or what to do with it. At first I thought the numbers were probabilities, however due to the lack of a decimal sign or percentage to indicate it, I was somewhat confused. I somehow got 90, and input 30 for both A and B.
A1. P(A) = 30/90 or 0.333
A2. P(B) = 30/90 or 0.333
A3. P(A or B) = 1/3 or 0.333
A4. 0.666
B1. False.
B2. The calculations are incorrect. It fails to describe the fact that the weatherman correctly predicts the rain 4.5/5 times a year, and incorrectly predicted rain 36.5/365 times a year. 4.5/5 times did the weatherman claim there was going to be rain and there was, in contrast to the 1/10 times that he said there was going to be rain and there was not. This ratio suggests that there is a higher likelihood that there will be rain for the wedding.
C.I have no clue how to use dbinom, or what the first xxx is supposed to describe within this question. 8/10 would likely have presented with no post-op complications after the traditional method was used.
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