A Mercury Thermometer Is Used to Take Four Temperatures of a Solution

Multiple Choice

A mercury thermometer is used to take four temperatures of a solution. The temperatures are 44.8 ºC, 44.9 ºC, 45.0 ºC, and 45.1 ºC. An alcohol thermometer was also used and measured 44.9 ºC, 45.3 ºC, 45.4 ºC, and 45.9 ºC. The solution is correctly determined to be 45.0 ºC by other means. Which conclusion is correct?

A) The mercury thermometer is the more precise.
B) The alcohol thermometer is the more precise.
C) There is no difference between the thermometers.
D) There is no way to determine precision with these temperatures.