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Uploaded: 14.11.2010

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Seller: kelena2012

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Description

  • Final standings RFEI "Econometrics".

  • Answers to the 10 questions.

  • Here are the first three questions for verification:


  • 1.Po seven in the Urals

  • Federal District in 2006 the values \u200b\u200bof

  • two traits (Table. 1) ...

  • ....

  • What kind is given by the equation of linear regression,

  • characterizing the dependence of expenditure on the purchase

  • of food in total expenditure?

  • a) yh = 76.88 -0,35h;

  • b) yx = 47.68 -0,87h;

  • c) yx = 83.52 -0,71h.

  • 2.Chem is the linear coefficient of steam

  • correlation based on the conditions of the problem 1?

  • a) rxy = -0,473;

  • b) rxy = -0,353;

  • in) rxy = -0,582.

  • 3. What is the value of the average error

  • approximation, based on the conditions of the problem 1?

  • a) A = 8.1%;

  • b) A = 12.2%;

  • c) A = 7.8%. etc .........

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