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Robin
Robin asked in Science & MathematicsMathematics · 4 years ago

How do I calculate chances?

If there s 100 cards and 10 are my cards, how big is my chance to get the right card twice in a row?

If there s 100 cards and 30 are my cards, how big is my chance to get the right card 3 times in a row?

2 Answers

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  • ?
    Lv 7
    4 years ago

    i) P = 1/100

    ii) P = 27/1000

  • Fizzabel
    4 years ago

    Multiply the probabilities. So the first one would be 0.1 x 0.1 (if you replace the card)

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