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.
How To Get Koolaid Out of Your Hair In 10 Minutes. I just dyed my hair with koolaid and then got it out so easily! Usually it takes up to 2 weeks to fade out of my hair naturally. I'm going to share with you how I did this. First, if you've dyed your whole head of hair, you'll need to follow a different method.