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8 - Lecture 3

# 8 - Lecture 3 - Introduction to Econometrics Econ 322...

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Introduction to Econometrics Econ 322; Summer 2011 Ruby HENRY [email protected] June 8, 2011 Ruby HENRY () Introduction to Econometrics June 8, 2011 1 / 8

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The Normal Distribution: N ( μ , σ 2 ) The Normal distribution describes the probability distribution for a random variable X that has the following properties: Ruby HENRY () Introduction to Econometrics June 8, 2011 2 / 8
The Normal Distribution: N ( μ , σ 2 ) The Normal distribution describes the probability distribution for a random variable X that has the following properties: X can take any value on the real line ( ° , ) Ruby HENRY () Introduction to Econometrics June 8, 2011 2 / 8

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The Normal Distribution: N ( μ , σ 2 ) The Normal distribution describes the probability distribution for a random variable X that has the following properties: X can take any value on the real line ( ° , ) Is this discrete or continuous? Ruby HENRY () Introduction to Econometrics June 8, 2011 2 / 8
The Normal Distribution: N ( μ , σ 2 ) The Normal distribution describes the probability distribution for a random variable X that has the following properties: X can take any value on the real line ( ° , ) Is this discrete or continuous? the density function has the familiar °bell shaped± curve Ruby HENRY () Introduction to Econometrics June 8, 2011 2 / 8

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The Normal Distribution: N ( μ , σ 2 ) The Normal distribution describes the probability distribution for a random variable X that has the following properties: X can take any value on the real line ( ° , ) Is this discrete or continuous? the density function has the familiar °bell shaped± curve a normal random variable with mean μ and variance σ 2 has probability density function f ( X = x ) = φ ( x ) = 1 2 πσ 2 e ° 1 2 σ 2 ( x ° μ ) 2 . Ruby HENRY () Introduction to Econometrics June 8, 2011 2 / 8
The Normal Distribution: N ( μ , σ 2 ) The Normal distribution describes the probability distribution for a random variable X that has the following properties: X can take any value on the real line ( ° , ) Is this discrete or continuous?

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8 - Lecture 3 - Introduction to Econometrics Econ 322...

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