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

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

A

`n(A cup B) = n(A)`

B

`n(A cap B) = n(B)`

C

`n(A cup B) = n(B)`

D

`n(A cap 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 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
    none of these

  • If A and B are two events such that A subset B and P(B) != 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

  • 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)`

    • Similar Questions

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