The Cambridge Power and Light Company selected 20 residential customers at random. Following are the amounts, to the nearest dollar, the customers were charged for electrical service last month: $48 161 155 81 141 23 38 138 47 63 151 43 159 171 164 91 80 122 140 120 a. Compute the arithmetic mean. (Round the final answer to 2 decimal places.)

The Cambridge Power and Light Company selected 20 residential customers at random. Following are the amounts, to the nearest dollar, the customers were charged for electrical service last month: $48 161 155 81 141 23 38 138 47 63 151 43 159 171 164 91 80 122 140 120 a. Compute the arithmetic mean. (Round the final answer to 2 decimal places.)

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter4: Polynomial And Rational Functions

Section4.6: Rational Functions

Problem 11SC: Find the mean hourly cost when the cell phone described above is used for 240 minutes.

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