5. A farmer has 800 m of fence to construct a pen as shown. a) Write an equation to express the area as a function of the width. (1) b) Determine the dimensions that produce the maximum area. (3)

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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.