4 The marginal cost (in dollars per square foot) of installing x square feet of kitchen countertop is given by C'(x) = x` a) Find the cost of installing 40 ft of countertop. b) Find the cost of installing an extra 19 ft of countertop after 40 ft have already been installed.

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.