Spiral density function implementation

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Hi,
I need to define a Spiral density function with parameters theat (the angle of the spiral) and r (the radius)
Does anyone know how can i do it ?
Thank
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Orr Streicher
Orr Streicher 2021-4-27
编辑:Orr Streicher 2021-4-27
I dont have the density function formula.. the assignment is to create a Spiral dentity function where thata distrebution is uniform [0, 4pi] and the radius r has normal distrebution where the expectation mu=thata/2 and std=2.5

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Paul
Paul 2021-4-27
I'm going to assume that the question means that the conditional density of r given theta is normal with exepectation mu = theta/2 and sigma = 2.5. Use the defnition of the conditional density function for continuous random variables. You will see that definition contains three terms. You're given two of them, solve for the third.

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