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If A and B are finite sets and A sub B...

If A and B are finite sets and `A sub B` then

A

`n(A uu B)=n(A)`

B

`n(A nn B)= n(B)`

C

`n(A uu B)=n(B)`

D

`n(A nn B)=phi`

Text Solution

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The correct Answer is:
C
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Knowledge Check

  • If A and B are finite sets and A subset B , then

    A
    `n( Auu B)= n(B)`
    B
    `n( A nn B)= n(B)`
    C
    `n( A nn B)= phi`
    D
    `n( Auu B)= n(A)`

  • If A and B are two finite sets such that A nn B != phi , then n (A uu B) =

    A
    `n (A) + n (B)`
    B
    `n (A) + n (B)+n (A nn B)`
    C
    `n (A) + n (B) - n (A nn B)`
    D
    `n (A) . n (B)`

  • If A and B are two events such that A sub B and P(B) ne 0 , then which of the following is correct?

    A
    `P(A|B) = (P(B))/(P(A))`
    B
    `P(A|B) lt P(A)
    C
    `P(A|B) ge P(A)`
    D
    none of these

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    Explore conceptually related problems

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    If A and B are any two sets then A nn (A uu B)' =

    If A,B and C are any three sets , then A x (B nn C) is :

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