Calculate Avg of 2 Values with Significant Figures: 1.56324 N & 1.13405 N

[jeehoo]

Homework Statement

We measured 2 values and were asked to calculate their average using sig fig
The two values were: 1.56324 N and 1.13405 N.

( 1.56324 N + 1.13405 N ) / 2 = 1.348645 N

Would the answer be 1.34865 N or 1 N?
(Someone told me that we only use the sig figs of measured values, which are 1.56324 N and 1.13405 N.)

Homework Equations

avg. = sum of values / number of values

The Attempt at a Solution

I think it's 1 N since when dividing or multiplying you use the sig fig of numbers with the least amount of sig figs.

 

[Doc Al]

I think it's 1 N since when dividing or multiplying you use the sig fig of numbers with the least amount of sig figs.

Realize that the 2 you are dividing by is an exact number. Dividing by an exact number does not impact the number of significant digits in your answer.