Learning Objectives

  • Distinguish between a population mean and sample mean.
  • Calculate and interpret the mean, the median, and the mode.
  • Calculate and interpret the weighted mean for two or more samples with unequal sample sizes.
  • Identify the characteristics of the mean.
  • Identify an appropriate measure of central tendency for different distributions and scales of measurement.
  • Compute the mean, the median, and the mode using SPSS.