Measurement of the time period of a simple pendulum and the associated errors:
5 students were asked to measure the time period of a pendulum. They obtained the following result:
The teacher explained 4 different types of errors involved in their observations:
Absolute error: It is the difference of the arithmetic value of all the measured values and each of the measured values.
Mean absolute error: It is the arithmetic mean of the value of absolute errors.
Fractional error: It is the ratio of the mean absolute error to the arithmetic mean of the measured values.
Percentage error: It is the fractional error multiplied by 100.
What is the mean time period of oscillation of the pendulum?