Probability Rules

Front

What is the definition of probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

How can probability be expressed?

Back

Probability can be expressed as a fraction, decimal, or percentage.

Front

What is the probability of rolling an even number on a single six-sided die?

Back

The probability is 3/6 or 1/2, since there are three even numbers (2, 4, 6) out of six possible outcomes.

Front

What is the probability of rolling a multiple of 3 on a single six-sided die?

Back

The probability is 2/6 or 1/3, since there are two multiples of 3 (3, 6) out of six possible outcomes.

Front

What is the combined probability of rolling an even number or a multiple of 3 on a single die?

Back

The combined probability is 2/3.

Front

What is the formula for calculating the probability of two independent events occurring?

Back

The probability of two independent events A and B occurring is P(A) * P(B).

Front

What is the probability of drawing a spade from a standard deck of cards?

Back

The probability is 13/52 or 1/4, since there are 13 spades in a deck of 52 cards.

Front

What is the probability of drawing a red card from a standard deck of cards?

Back

The probability is 26/52 or 1/2, since there are 26 red cards (hearts and diamonds) in a deck of 52 cards.

Front

What is the probability of drawing a spade or a red card from a standard deck?

Back

The probability is 39/52.

Front

What is the probability of selecting two dimes from a set of coins without replacement?

Back

The probability is 1/15.