Arun
Last Activity: 6 Years ago
we know that Arithmetic mean time of a oscillating simple pendulum is given by
∑ Xi / N = > { 90s+92s+93s+95s }/4 => 92 s
and we know that mean deviation of a simple pendulum is given by
∑ | Xbar - Xi |/N = > {2+1+3+0} /4 = > 1.5
Given minimum division in the measuring clock , ie . simple pendulum = > 1s
thus the reported mean time of a oscillating simple pendulum (92+,-2) s