The costs per load (in cents) of 26 dish-washing detergents tested by a consumer organization are shown here. Find the standard deviation of the sample. 
Definitions:
Calculator Manufacturer
A company or entity involved in the production of calculators, ranging from basic to advanced scientific and graphing models.
Profit-maximizing
The process or strategy of adjusting production and sales to achieve the highest possible profit.
Payment to Labor
Compensation provided to workers for their labor, which can be in the form of wages, salaries, or benefits, for their contribution to production processes.
Marginal Revenue Product
The additional revenue generated by employing one more unit of a factor of production, holding all other inputs constant.
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