Choose the appropriate term for each definition below.

• -population variance median z-score second quartile (Q2) sample mean  the variance of a population
• -population variance median z-score second quartile (Q2) sample mean  the number that divides the bottom 50% of the data from the top 50%; same as the 50-th percentile
• -population variance median z-score second quartile (Q2) sample mean  the mean of a sample
• -population variance median z-score second quartile (Q2) sample mean  a number for which 50% of the data is less than that number; same as the median
• -population variance median z-score second quartile (Q2) sample mean  the number of standard deviations an observation is away from the mean