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.)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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