Mathematics, 06.06.2020 17:00 kandi2565

A commuter finds that she waits an average of 12.9 seconds at each of three stoplights, with a standard deviation of 7.5 seconds. Find the mean and the standard deviation of the total amount of time she waits at all three lights. What, if anything, did you assume

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A commuter finds that she waits an average of 12.9 seconds at each of three stoplights, with a stand...

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