Introduction to Probability

Front

What is the probability of an event NOT happening called?

Back

Complement

Front

If you roll a number cube (die), what is the probability of NOT rolling a 1?

Back

5/6

Front

What percent is equivalent to the fraction 1/4?

Back

25%

Front

What is the probability of landing on tails when flipping a fair coin?

Back

1/2

Front

What percent is equivalent to the fraction 3/10?

Back

30%

Front

Define probability in the context of events.

Back

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

Front

What is the total probability of all possible outcomes of an event?

Back

1 (or 100%)

Front

How do you calculate the probability of an event occurring?

Back

Probability = (Number of favorable outcomes) / (Total number of possible outcomes)

Front

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

Back

3/6 or 1/2 (the even numbers are 2, 4, and 6).

Front

What is the relationship between probability and odds?

Back

Probability is the likelihood of an event occurring, while odds compare the likelihood of the event occurring to it not occurring.