Probability of events

Front

What is the probability of an event?

Back

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

Front

What does it mean for outcomes to be equally likely?

Back

Outcomes are equally likely if each outcome has the same chance of occurring.

Front

How many outcomes are there when rolling a standard 6-faced die?

Back

There are 6 equally likely outcomes when rolling a standard 6-faced die.

Front

What is the probability of rolling a number less than 3 on a 6-faced die?

Back

The probability is 1/3, as the numbers less than 3 are 1 and 2.

Front

How do you calculate the expected number of occurrences of an event?

Back

Multiply the total number of trials by the probability of the event.

Front

What is the probability of getting heads when tossing a coin?

Back

The probability is 1/2, as there are two equally likely outcomes: heads or tails.

Front

What is the probability of rolling a number greater than 4 on a 6-faced die?

Back

The probability is 1/3, as the numbers greater than 4 are 5 and 6.

Front

What is a sample space in probability?

Back

A sample space is the set of all possible outcomes of a probability experiment.

Front

What is an event in probability?

Back

An event is a specific outcome or a set of outcomes from a probability experiment.

Front

What is the formula for calculating probability?

Back

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