Measures of central tendency and dispersion

• Why the median would be a more appropiate measure for central tendency?

  There is an anomalous result in the data set

  This would distort the mean value making it unrepresentative of the data set as a whole
• What does standard deviation show?

  Higher SD - higher variability, lower consistency
• What is a positively skewed distribution?

  Where the mean is higher than the median
• What is a negatively skewed distribution?

  Where the mean is lower than the median
• What is the mode

  Most frequent occuring score