High School Math : Identifying Variables and Relationships

Study concepts, example questions & explanations for High School Math

varsity tutors app store varsity tutors android store

Example Questions

Example Question #1 :Dependence And Independence

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

Possible Answers:

Correct answer:

Explanation:

Probability of drawing first ace of hearts:

Probability of drawing second ace of hearts:

Multiply both probabilities by each other:

Example Question #1 :How To Use The Multiplication Rule

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 :确定变量和关系

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.

Learning Tools by Varsity Tutors