Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
During an experiment, some water was removed from each of 6 [#permalink]
17 Jan 2007, 08:22
0% (00:00) correct
0% (00:00) wrong based on 1 sessions
During an experiment, some water was removed from each of 6 water tanks. If the standards deviation of the volumes of water in the tanks at the beginning of the experiment was 10 gallons, what was the standard deviation of the volumes of water in the tanks at the end of the experiment?
(1) For each tank, 30 percent of the volume of water that was in the tank at the beginning of the experiment was removed during the experiment
(2)The average (arithmetic mean) volume of water in the tanks at the end of the experiement was 63 gallons