Normal Distribution and z-scores. mean: the average obtained by dividing the sum of the data by the number of data in the set. Given a set of data, {x 1, x 2, x 3, ..., x n }, you can find the mean, , using the following formula: standard deviation: the extent to which data differs from the mean.
Quick Answer. Kool-Aid hair dye hair dye can last for eight to 12 weeks. The intensity of the color depends on several factors such as the natural hair color, the amount of time the hair is soaked with the dye, the amount of dye used and the dyeing method used. Continue Reading.
If you have light brown or blond hair and you are looking for a non-permanent color option, you can dye your hair using Kool-Aid. The Kool-Aid will temporarily dye your hair the color of your choice and last about one to two weeks.aturate the lower portion of your hair completely with the dye. Let down the top portion of your hair and repeat Steps 4 and 5 on that section. Gather all of your hair at the top of your head and use a hair elastic to keep it up in a bun.