2. The graph of f'(x), the derivative of f(x) appears below. Use the graph to answer the following questions. (a) On what intervals is f(x) increasing? Decreasing? (b) Where does f(x) have a local minimum? A local maximum? (c) On what intervals is f(x) concave up? Concave down?

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.