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A random variable X ahs the following di...

A random variable X ahs the following distribution
`{:(x,1,2,3,4),(P(X=x),c,2c,3c,4c):}`
The value of c is

A

1

B

10

C

`(1)/(10)`

D

`(1)/(5)`

Text Solution

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The correct Answer is:
C
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Knowledge Check

  • A random variable X has the following distribution {:(x,1,2,3,4),(P(X=x),c,2c,3c,4c):} Match the following . {:(I.,c=," "(a)1),(II.,"Mean"=," (b)0.1"),(III.,"Variance"=," (c)3"):}

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  • A random variable X has the following distribution {:(X=x_(1):,1,2,3,4),(P(X=x_(1)):,k,2k,3k,4k):} The value of k and P(X lt 3) are equal to

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    `k=1//10,P(X lt 3)=3//5`
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