Let X be a random variable with the probability function f(x) = kx^2 for x = 2, 3, 4, 6.
(a) Find the appropriate value of k.
(b) Find the mean and the variance.
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OpenStudy (anonymous):
discrete or continuous?
OpenStudy (anonymous):
the random variable that is.
OpenStudy (anonymous):
continuous
OpenStudy (anonymous):
oh no wait this is discrete. Sorry.
OpenStudy (anonymous):
yeah, i dont know why i asked. it gave discrete values (2, 3, 4, 6). my apologies.
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OpenStudy (anonymous):
hold on...
OpenStudy (anonymous):
Part 1
OpenStudy (anonymous):
Part 2
OpenStudy (anonymous):
Alright I see what I did wrong there. I did part a right, but part b sort of messed me up. I know what to do now. Thanks for the help. :)
OpenStudy (anonymous):
Not a problem. Is this for class or a professional exam?
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OpenStudy (anonymous):
It's suppose to be a class that relates with both mathematics and computer science.
OpenStudy (anonymous):
Cool. Sounds like something from an actuary P/1 exam. Anyway, best of luck and take care.