Which of the following is false? Hint: It might be useful to sketch the distributions. The Z score for the median of a symmetric distribution is approximately 0. Regardless of the shape and skew of a distribution, Z scores are still defined and can be calculated for observations from that distribution. If observations don't come from a distribution that's nearly normal, we can't calculate percentiles based on the Z table. If you calculated the Z score for the median of a right skewed distribution, you'd most likely get a positive number