I need to know how to determine the missing probability of amissing item. I have

Question

I need to know how to determine the missing probability of amissing item. I have the following info. X=       1       2         3      4          5 p(x)=    .16    .22        ?      .20    .14 What is the answer to the question mark and how do I findit? I need to know how to determine the missing probability of amissing item. I have the following info. X=       1       2         3      4          5 p(x)=    .16    .22        ?      .20    .14 What is the answer to the question mark and how do I findit?

Explanation / Answer

We know that sum of probability in a probabilityfunction is one. Let us call the probability of random variable takes the value3 is a. As above i mentiond sum of the probability is one So apply that w get the value of a. ==> 0.16+0.22+a+0.20+0.14=1 ==>a=1-0.72=0.28 X=       1       2         3         4          5 p(x)=    .16    .22      0.28      .20     .14 ==> 0.16+0.22+a+0.20+0.14=1 ==>a=1-0.72=0.28 X=       1       2         3         4          5 p(x)=    .16    .22      0.28      .20     .14 X=       1       2         3         4          5 p(x)=    .16    .22      0.28      .20     .14

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