[XBOX999]

Can you help me in this quetion please
The methanol level in a tank is measured using two different devices. Several measurements were taken to check if the two devices worked appropriately. The following data were obtained:
Height (cm) Device #1
35.2
36.6
36.3
36.4
36.5
Height (cm) Device #2
48.7
50.7
49.4
51.6
50.2
a) For each device, calculate the mean height and the standard deviation.
b) Which device shows the largest distribution and why (short answer)?

[freezard7734]

This looks more like a statistics question than a chemistry question. You should consult a statistics book to solve this problem.