STAT 1053 Week 8
STAT 1053 Week 8 STAT 1053
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This 3 page Class Notes was uploaded by Morgan Routman on Friday March 20, 2015. The Class Notes belongs to STAT 1053 at George Washington University taught by Professor Balaji in Winter2015. Since its upload, it has received 85 views. For similar materials see Intro to Statistics for Social Sciences in Statistics at George Washington University.
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Date Created: 03/20/15
STAT 1053 Week 8 32015 1203 PM o A random variable is continuous if it can assume any value over an interval Distribution 0 How do we describe it 0 Cannot describe the probability for each possible value because they are infinite n Shows how the probability is distributed over a range of random variables a Total area under the curve total probability 1 FX Represents area at the height of the curve Fx 2 0 ffXCX 1 9 area under curve 1 Pxa 0 Pxgta PxZa Pxlta PxSa Paltxltb area under fx between a and b Fx 1dc for ch3d OOOOOO o All standard normal random variables are connected to Z via the following equation PZa 0 PZlta PZSa PZgtO 05 PZltO P1ltZlt1 68 P2ltZlt2 95 P3ltZlt3 997 PZgta PZlta PaltZltO POltZlta PaltZlta 2POltZlta PZgta 1Pzlta 5 POltZlta STAT 1053 Week 8 Continued 32015 1203 PM Example compute the following using zscore sheet a PZlt226 b P1ltZlt1 c PZgt12 a 04881 b 06826 c 05038901151 0 Remark 0 0 Remark
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