SOLUTION: The retail price of 12-pack soda can be characterized as having a normal distribution with a mean of 3 dollars and a standard deviation of 0.25. Below what price do you find 20 per

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Question 1136853: The retail price of 12-pack soda can be characterized as having a normal distribution with a mean of 3 dollars and a standard deviation of 0.25. Below what price do you find 20 percent of all 12-packs?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
The z-value for 20%ile is -0.84
z=(x-mean)/sd
-0.84=(x-3)/0.25
-0.21=x-3
x=$2.79