Gas prices in the US in November 2022 had a mean of $3.74 per gallon with a standard deviation of $0.21. A gas price of $2.97 per gallon has a z-score of -3.71, meaning it is over 3 standard deviations below the mean. There is a probability of 0.0008, or 0.08%, that a randomly selected gas station would have a price less than $3.53 per gallon.