The mean number of calories women consume per day is 1460 with a standard deviation of 169. If Mariah eats 1660 calories, what is her z-score? The formula z = x − μ σ tells you how high or low the number of calories a person eats is relative to the average. Use the formula z = x − μ σ , where μ is the mean, σ is the standard deviation and x is the number of calories Mariah eats. Round your answer to four decimal places.