Clarification of stats question

[nod32]

Homework Statement

determine the deviation of each instrument from the gas thermometer at all recorded temperatures.

4 temperature measuring instruments were compared. readings were taken at 10 points (as temp was increased)

2. The attempt at a solution

the wording of the question is what's confusing me. Is each instrument going to have one value for deviation? Or is it asking for a deviation at each reading?

 

[rock.freak667]

You have four sets of data, each with 10 points? (One for each instrument)

If so, then each instrument will have a standard deviation which you can calculate using one set of data's 10 points. (There should be a formula you can use)

 

[nod32]

You have four sets of data, each with 10 points? (One for each instrument)

thats correct

If so, then each instrument will have a standard deviation which you can calculate using one set of data's 10 points. (There should be a formula you can use)

I thought about this, but it says "determine the deviation of each device from the gas thermometer". I could just calculate the standard deviation, but that doesn't compare it against the gas thermo.