Suppose that Y1, Y2, . . . , Yn denote a random sample of size n from an exponential distribution with density function given by

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Suppose that Y1, Y2, . . . , Yn denote a random sample of size n from a population with an exponential distribution whose density is given by

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...