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18-06-2024
Mathematics

Answered

Cell phone customers talk on the phone an average of 150 minutes a month with a standard deviation of 35 minutes. Company Costs-A-Lot charges a flat monthly fee of $25 and $0.10 per minute. Company We-Are-Cheaper charges a flat monthly fee of $5 and $0.20 per minute. What is the standard deviation of the charges of the company with the larger standard deviation?

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