New PMP Question & Answers with explanation

A decision tree is a Perform Quantitative Risk Analysis technique. A decision tree is represented by a Decision Tree Diagram. The decision tree describes a situation under consideration, the implications of each of the available choices, and the possible scenarios. A Decision Tree Diagram shows how to make a decision among alternative capital strategies known as:
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You are managing a fund-raising golf tournament that has a hole-in-one contest. However, your company cannot afford to pay the $1,000,000 award if someone does get a hole in one, so it has elected to take out an insurance policy in the event someone does get lucky. This is an example of:
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The X in the DfX can be:
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There are a number of risks that have been identified in your project. The team has decided not to change the project plan to deal with the risks, but they have established a contingency reserve of money in the event something triggers these risks. This is an example of what type of risk mitigation technique?
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You are managing an oil-drilling project. With oil at $143 per barrel, this could be a highly lucrative project. However, there is a chance that the price of oil will drop below $105 per barrel, which would eliminate the profit in the project. This is an example of:
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