Simple Probability

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 and 1.

Front

What does it mean if an event is 'certain'?

Back

An event is 'certain' if it is guaranteed to happen, with a probability of 1.

Front

What does it mean if an event is 'impossible'?

Back

An event is 'impossible' if it cannot happen at all, with a probability of 0.

Front

What is the probability of choosing a pink marble if there are more pink marbles than any other color?

Back

Likely.

Front

What is the probability of choosing a black marble if there are very few black marbles?

Back

Unlikely.

Front

What is the probability of spinning green on a spinner divided into 4 equal parts with one green?

Back

1/4.

Front

What is the probability of flipping a coin and getting heads?

Back

1/2.

Front

What is P(not A)?

Back

P(not A) is the probability that event A does not occur.

Front

If the probability of an event A is 1/4, what is P(not A)?

Back

3/4.

Front

What is a sample space in probability?

Back

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