Probability Basics - Week 1

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, or as a percentage.

Front

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

Back

1/3

Front

What is experimental probability?

Back

Experimental probability is the probability determined by conducting an experiment and recording the outcomes.

Front

If the probability of an event is 30%, what is the probability that the event does not occur?

Back

70%.

Front

How can probability be expressed?

Back

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

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 the formula for calculating probability?

Back

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

Front

What is the probability of rolling a 4 on a 6-sided die?

Back

1/6.

Front

What does it mean if an event is certain?

Back

If an event is certain, it has a probability of 1 (or 100%) of occurring.

Front

What does it mean if an event is impossible?

Back

If an event is impossible, it has a probability of 0 of occurring.