Formula Sheet #1 Week of 1/21/08 Page 1 of 1 I.Central Tendency & Variability Mean ()//iiXNMXNµ==∑∑Variance: 22//1sXMNσµ=−−∑∑Variance (computational formula) = 22(() /)(() /)1XNXsNσ−=−=−∑∑Standard Deviation: 22ss==II. Standard Normal Distribution (
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This note was uploaded on 03/26/2008 for the course STAT 0032 taught by Professor Dicorcia during the Spring '08 term at Tufts.