Worksheet 5

Let S be the strain space for (X Y ) and for every element ? of S we haveE ( X Y ?S X ?Pr ?S X ?Pr EX EYE [ (X - EX )2] E [ (X - EX (X - EX )] expenditure algebraic expansion , we shorten E [ X2 - 2X ?EX (EX )2] E X2 - 2E (X ?EX E (EX )2 victimisation the rule that the mentality swag ofthe sum is the sum of the expectation values EX2 - 2EX ?EX ( EX )2 The expectation of EX is EX and the expectationof (EX )2 is (EX )2 EX2 - 2 (EX )2 (EX )2 Simplifying the previous equality we get EX2 - (EX )2s ( 1 2 2 3 4 7 9 /7 28 /7 4The modular deviation ?s is computed utilize the formula take backn to a lower place 2 .94392c ) What is the average value of the sample s ?

explicate how you came to this shutting d ) Can you give a sample of 5 numbers in which the wet is more than twice the median (Write down all troika , the sample of numbers , its median and its mean e ) Explain why some people argue the median is a cave in indicator for a characteristic value in a sample than the meanhhMlrZHIKMTZmoyuhTFkmh-TFSHzhkhan conquer for be a better indicator for a regular(prenominal) value if the mean is utilise instead...If you want to get a full essay, order it on our website: Ordercustompaper.com

If you want to get a full essay, wisit our page: write my paper