Westside Energy charges its electric customers a base rate of $6.00 per month, plus 10c per kilowatt-hour (kWh) for the first 300 kWh used and 4c per kWh for all usage over 300 kwh. Suppose a customer uses x kWh of electricity in one month. (a) Express the monthly cost E as a piecewise defined function of x. (Assume E is measured in dollars.) if 0sxs 300 E(x) = if 300 < x

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.