W2 = weight without average at the end of the experiment (g) W1 = average weight when you start to experiment with (g) T2 = time period at the end of the experiment. T1 = time period when you start to experiment.
The W2 = weight At the end of the experiment (g) W1 = weight at the start of the experiment (g) At the end of the trial period T2 = T1 = time when the experiment began.
The W2 = average weight at the end of the experiment (g).W1 = average weight when the trials (g).T2 = period when the end of the experiment.T1 = period when start the experiment.