High School Math : Variable Relationships

Study concepts, example questions & explanations for High School Math

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Example Questions

Example Question #1 :Independent Random Variable Combination

In a standard deck of cards, with replacement, what is the probability of drawing two Ace of Hearts?

Possible Answers:

Correct answer:

Explanation:

概率的第一高手of hearts:

Probability of drawing second ace of hearts:

这两个概率乘以对方:

Example Question #1 :Identifying Variables And Relationships

In a standard deck of cards, without replacement, what is the probability of drawing three kings?

Possible Answers:

Correct answer:

Explanation:

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?

Possible Answers:

Correct answer:

Explanation:

In a standard deck of cards:

Example Question #61 :Ap Statistics

Using a standard deck of cards, what is the probability of choosing a single face card?

Possible Answers:

Correct answer:

Explanation:

There arecards in a standard deck:cards insuits. There areface cards (King, Queen, Jack) in each suit, so there aretotal face cards.

Thus the probability of choosing a single face card isor.

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