In s series of successive measurements in an experiment, the readings of the period of oscillation of a simple pendulum were found to be `2.63s,2.56s,2.42s,2.71s" and "2.80s`. Calculate
The mean value of the period of oscillation.

Explanation

`t_1= 2.63s, t_2=2.56s, t_3=2.42s, t_4= 2.71s, t_5= 2.80s`
`T_m= (t_1+t_2+t_3+t_4+t_5)/(5)`
`= (2.63+2.56+2.42+2.71+2.80)/(5)`
`T_m = (13.12)/(5)= 2.624s`
`T_m = 2.62s" ( Rounded off to " 2^(nd)` decimal place).