Based on the information in the table, if an investment was made in alternative energy in 2007, what is the probability that the money was invested in wind resources?
A.
B.
C.
D.
Answer:C
Based on the information in the table, if an investment was made in alternative energy in 2007, what is the probability that the money was invested in wind resources?
A. B. C. D.
Explanation: C According to the table, the relative investment in wind resources in 2007 was 0.40 of the total 1.00. Probability is defined by the number of things that fit the requirements divided by the total number of things. In this case, that would be . You don't need to worry about the actual dollar values, because these numbers both relate to the same total of $75 million. You do, however, need to simplify this fraction. You can multiply it by to get , which then reduces to . You could also divide it on your calculator to get 0.4, and then divide each fraction in the answer choices to see which one is also equal to 0.4. Either way, the correct answer is (C).