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6 votes
6 votes
If the following cards were placed upside down what is the probability that a heart is notdrawn?P (NOT heart)= # of cards that are not hearts/# of possible outcomes

User Cliffordwh
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1 Answer

25 votes
25 votes

If the cards are placed upside down, this makes the choice made whenever a card is drawn a random probability.

There are 4 different cards in the arrangement and only 1 card with a heart on it.

Therefore, the probability of picking a heart is:


P(\text{heart)}=(1)/(4)

Now the probability of not picking a heart is:


\begin{gathered} P(\text{NOT heart)=1-P(heart)} \\ \\ P(\text{NOT heart) = 1-}(1)/(4)=(3)/(4) \end{gathered}

Therefore, the final answer is 3/4

User Guisella
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3.2k points