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Example Questions
Example Question #1 : How To Identify Independent Variables
In a standard deck of cards, with replacement, what is the probability of drawing two Ace of Hearts?
Probability of drawing first ace of hearts:
Probability of drawing second ace of hearts:
Multiply both probabilities by each other:
Example Question #91 : Ap Statistics
In a standard deck of cards, without replacement, what is the probability of drawing three kings?
Start with 52 cards, probability of drawing first king:
Now you have 51 cards. Probability of drawing second king:
Now you have 50 cards. Probability of drawing third king:
Multiply all probabilities:
Example Question #1 : Identifying Variables And Relationships
With a standard deck of cards, what is the probability of picking a spade then a red card if there is no replacement?
In a standard deck of cards:
Example Question #1 : Statistical Patterns And Random Phenomena
Using a standard deck of cards, what is the probability of choosing a single face card?
There are cards in a standard deck:
cards in
suits. There are
face cards (King, Queen, Jack) in each suit, so there are
total face cards.
Thus the probability of choosing a single face card is or
.
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