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.
Kool-Aid: the classic childhood drink. Itâs fruity, and comes in a variety of flavors and colors. Did you know you can dye your hair with it? Kool-Aid is much cheaper than regular hair dye, and can easily work on dark brown hair with a lot less commitment than paying to get it done. What is dip-dyeing? This chosen method is generally used to dye the tips of the hair instead of covering ones whole head with dye.