Mean Absolute Deviation Is the mean absolute deviation of a sample a good statisticfor estimating the mean absolute deviation of the population? Why or why not? (Hint: SeeExample 5.)

STAT 2004 CHAPTER ONE: WEEK 4 SAMPLE STATISTICS n 2 1 2 Sample variance- s = n−1 i=1x ix´) Sample standard deviation- Tells you how spread out your data is. It is the square root of the variance. QUANTILES Also known as percentiles. o If you are in the 70 percentile, you are better than 70% of your class and not as good as 30%. DISTRIBUTION Describes shape, center, and spread/variation of data. For the images below, imagine histograms that fit the depicted curves. BOXPLOT A boxplot uses a five number summary consisting of the median (Q ), 2