# Value of K

Probability theory and statistics

### Value of K

$K(x^{6}) = 1$

$\dfrac{K(x^{6})}{x^{6}} = \dfrac{1}{x^{6}}$ where $x \ne 0$

$K = \dfrac{1}{x^{6}}$

Actually, here is the original problem:

A die has its six faces loaded so that P(roll is i)=K*x for x=1,2,3,4,5,6. It is rolled until an even number appears. Let X be the number of rolls needed.

Next finding K is needed.

Jason76

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### Re: Value of K

Contacted the professor.

A die has its six faces loaded so that P(roll is i)=K*x for x=1,2,3,4,5,6. It is rolled until an even number appears. Let X be the number of rolls needed.

Next finding K is needed.

$K + 2K + 3K + 4K + 5K + 6K = 1$

is the correct format so

$21K = 1$

so

$K = \dfrac{1}{21}$

Jason76

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Joined: Sat Apr 22, 2017 7:30 am
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