A commuter finds that she waits an average of 13.9 seconds at each of seven stoplights, with a standard deviation of 5.3

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A commuter finds that she waits an average of 13.9 seconds at each of seven stoplights, with a standard deviation of 5.3

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A Commuter Finds That She Waits An Average Of 13 9 Seconds At Each Of Seven Stoplights With A Standard Deviation Of 5 3 1
A Commuter Finds That She Waits An Average Of 13 9 Seconds At Each Of Seven Stoplights With A Standard Deviation Of 5 3 1 (9.37 KiB) Viewed 119 times
A commuter finds that she waits an average of 13.9 seconds at each of seven stoplights, with a standard deviation of 5.3 seconds. Find the mean and the standard deviation of the total amount of time she waits at all seven lights. What, if anything, did you assume? The mean time she waits at all seven lights in seconds. (Type an integer or a decimal.) es
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