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The following is a list of illuminance levels (in lux) measured in front of the Boise...

The following is a list of illuminance levels (in lux) measured in front of the Boise city hall at regular intervals during a winter day. What was the mean illuminance level on that day? What was the standard deviation? 100 220 310 420 380 600 1300 2570 940 590

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Answer #1

mean illuminance level on that day =743

the sample  standard deviation =733.4401

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