The standard deviation is determined by first calculating the mean, then taking the difference of each control result from the mean, squaring that difference, dividing by n-1, then taking the square root.
The higher the heat level is th â¦ e faster the liquids evaporate. But if you leave something outside like syrup for sometime, it will take much more longer to evaporate since syrup has a substance so much thicker than water.
And unlike thinners, Penetrol does not evaporate and actually makes more paint. By ensuring greater coverage from each litre of paint it saves money. A drop of ordinary paint did not spread far.