Anonymous
Anonymous asked in Science & MathematicsMathematics · 1 month ago

Please explain,, help ! ?

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  • 1 month ago
    Favourite answer

    1.

    Out of the 11 letters, there are 2 letters of 'B'.

    P(B) = 2/11

    2.

    Out of the 11 letters, there are 1 letter of 'P'.

    P(P) = 1/11

    3.

    Out of the 11 letters, there are 1 letter of 'A' and 2 letters of 'I".

    P(A or I) = P(A) + P(I) = (1/11) + (2/11) = 3/11

    4.

    P(not P) = 1 - P(P) = 1 - (1/11) = 10/11

  • 1 month ago

    There are ten letters in the word PROBABILITY.  Some are repeated, B and I.  The rest happen only once. 

    Imagine you have ten scrabble tiles with the ten letters on them, and you put them in a bag and shake them up and draw a tile without looking.

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