A student measures the time period of 100 oscillations of a simple pendulum four times. The data set is 90 s, 91 s , 92 s and 95 s. If the minimum division in the measuring clock is 1 s , the reported means time should be
A student measures the time period of 100 oscillations of a simple pendulum four times. The data set is 90 s, 91 s , 92 s and 95 s. If the minimum division in the measuring clock is 1 s , the reported means time should be