the incerase is adding and the decrease is subtracting :)
s= bracket n over sigma i (xi-x-)^2 all over n-1 closed bracket ^ 1/2
Decrease
no
The acidity can be lowered by adding a base.
decrease because the amount of debt changes
By the definition of standard deviation, 95.46% of the normal population will be within 2 SD of the mean. Explanation: The normal distribution of a population means it follows the "bell curve". The center of this bell curve is the population's mean value. One standard deviation defines two areas (on the left and right side of the central "mean" value) under the bell curve that each have 34.13% of the population. The next standard deviation adds two additional areas under the curve, each having 13.6% of the population. Adding the areas under the curves on both sides gives us (34.13% + 13.6%) x 2 = 95.46%
Adding an acid the pH decrease.
trololololololol
A decrease in current.
Adding more water will decrease the salt concentration.
Adding surfactants the surface tension decrease.