WDYE Review 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

How do you calculate the probability of an event?

Back

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

Front

What is the probability of not rolling a five on a six-sided number cube?

Back

The probability of not rolling a five is 83%.

Front

What is a circle graph?

Back

A circle graph, or pie chart, is a circular statistical graphic divided into slices to illustrate numerical proportions.

Front

What does it mean for events to be 'equally likely'?

Back

Events are equally likely if they have the same probability of occurring.

Front

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

Back

The probability of getting tails when tossing a coin is 1/2.

Front

What is the combined probability of two independent events?

Back

The combined probability of two independent events is the product of their individual probabilities.

Front

If a coin is tossed and a number cube is rolled, what is the probability of getting tails and a six?

Back

The probability of getting tails and a six is 1/12.

Front

What is a tree diagram?

Back

A tree diagram is a visual representation of all possible outcomes of an event, showing the paths to each outcome.

Front

What does 'expected value' mean in probability?

Back

Expected value is the average of all possible outcomes of a probability experiment, weighted by their probabilities.