Select the true statement(s) about the measures of central tendency. The sample mean and the sample median can be the same value. The median is sensitive to outliers. The sample mean and the population mean are always the same value. The sample mean is sensitive to outliers. The median may not exist for a specific data set. In a random sample of n observations, suppose n - 1 are positive and 1 is negative. The sample mean must be a positive number. If the mean is significantly greater than the median, one possible explanation is some extremely large outliers