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#1 2017-07-15 03:45:37

pavino14
Member
Registered: 2017-07-09
Posts: 3

MCQ on Probability density function ??

The probability density function of a discrete random variable X is given by P(X=x)=a(1/2)^x  ..... Then what is the value of a is..?????

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#2 2017-07-15 19:31:03

bob bundy
Administrator
Registered: 2010-06-20
Posts: 8,137

Re: MCQ on Probability density function ??

hi pavino14

Welcome to the forum.

The area under a pdf has to be 1 in total so you need to work out 'a' when

Are you able to do the integral?

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#3 2017-07-16 03:03:51

pavino14
Member
Registered: 2017-07-09
Posts: 3

Re: MCQ on Probability density function ??

I'm just learning integral...Thank you admin ..

Last edited by pavino14 (2017-07-16 03:06:04)

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