- #1

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Thanks in advance.

<_ means greater and equal to

Well, if we give Z to be a random varible with a pdf of:

pdf of Z = (5/2)*z^3 if -1<_ z _> 1

0 otherwise

Suppose that X = 2-Z^2

What is the pdf of X?

- Thread starter doggie_Walkes
- Start date

- #1

- 20

- 0

Thanks in advance.

<_ means greater and equal to

Well, if we give Z to be a random varible with a pdf of:

pdf of Z = (5/2)*z^3 if -1<_ z _> 1

0 otherwise

Suppose that X = 2-Z^2

What is the pdf of X?

- #2

lanedance

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what do you think? the idea is to have a go and get some help with your work...

- #3

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well if i first find the CDF of FX(x) then um, try plugging it in to find the probablility of y<_y?

- #4

statdad

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- #5

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yes i do mean [tex]

-1 \le z \le 1

[/tex]

can u help me on the question?

-1 \le z \le 1

[/tex]

can u help me on the question?

- #6

lanedance

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ok so what is y & what do you plan to "plug-in"?well if i first find the CDF of FX(x) then um, try plugging it in to find the probablility of y<_y?

Based on the question, I would use the known CDF/PDF of Z and try & use it to calculate that of X