ACTIVITY 1. Given the following cases, solve for mean, standard deviation and variance. Express the measurement of the physical quantity completely.
1. In an experiment, 5 trials were done to determine the inside diameter of a ring. The measurements are as
follows: 1.24cm, 1.31cm, 1.28cm, 1.29cm,1.19cm mean, x= standard deviation, or
variance, oʻ=
Diameter of the ring =
2. During an experiment, a group of students was asked to measure the height of a liquid in a graduated
cylinder. The measurements were as follows: 5.3ml, 5.4ml, 5.6ml, 5.8ml, 5.1ml and 4.9ml.
mean, x= standard deviation, a = variance, height of the liquid

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

Attach the free body diagram and i will you answer the question.! : d