Three measurements of an unknown resistance are 12.5 Ω, 12.3 Ω and 12.4 Ω

PHYSICS · Single correct · CBSE · Physics · Units and Measurements · Units and Measurements

Problem

Three measurements of an unknown resistance are 12.5 Ω, 12.3 Ω and 12.4 Ω. The mean resistance should be reported as (a)

12.37\,\Omega

(b)

12.40\,\Omega

(c)

12.4\,\Omega

(d)

12.33\,\Omega