jonny

03-17-2010, 04:40 PM

I'm having trouble with the continuous distribution. I can verify that f(x) satisfies the requirements for the uniform random variable X and find probabilities but am unsure where to start with continuous.

Here's an example

f(x) = -0.08x + 0.4, 0 <= x <= 5

I noticed this line is downward sloping unlike the examples in the book which are straight lines. I also know that requirement #1 is satisfied because all values between 0 and 5 are positive.

I am stuck on how to figure out if it satisfies requirement #2 and how to find probabilities such as P(x >= 3). Any help is appreciated.

Here's an example

f(x) = -0.08x + 0.4, 0 <= x <= 5

I noticed this line is downward sloping unlike the examples in the book which are straight lines. I also know that requirement #1 is satisfied because all values between 0 and 5 are positive.

I am stuck on how to figure out if it satisfies requirement #2 and how to find probabilities such as P(x >= 3). Any help is appreciated.