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.
So I just dip dyed my hair in Kool Aid using the instructions that I found in a YouTube video. I'm a brunette and I dip dyed it red (Cherry) and the girl in the video has the same color hair as me and she said her's lasted from about June to October because she said it stayed in for 6 months and then she...