If the mean of a certain population is 250 and the standard deviation is 40, what x value corresponds to the z-score of -0.35.

To find the x value corresponding to a given z-score, you can use the formula:

x = z * σ + μ

Where:
- x is the value in the data set
- z is the z-score
- σ is the standard deviation
- μ is the mean

Given that the mean (μ) is 250 and the standard deviation (σ) is 40, and the z-score is -0.35, we can substitute these values into the formula:

x = -0.35 * 40 + 250

Simplifying, we get:

x = -14 + 250

x = 236

So, the x value corresponding to the z-score of -0.35 is 236.