Probability Review

Front

What is the definition of an independent event in probability?

Back

An independent event is one where the outcome of one event does not affect the outcome of another event.

Front

What is the definition of a dependent event in probability?

Back

A dependent event is one where the outcome of one event affects the outcome of another event.

Front

What is the probability of an event not occurring, denoted as P(not A)?

Back

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

Front

What does 100% probability indicate about an event?

Back

It indicates that the event is certain to happen.

Front

How do you calculate the total number of outcomes when rolling a die and flipping a coin?

Back

Multiply the number of outcomes for the die (6) by the number of outcomes for the coin (2): 6 * 2 = 12.

Front

What is the probability of spinning red on a spinner and picking a red marble from a bag?

Back

The probability is calculated by multiplying the probability of each independent event.

Front

If a spinner has 4 equal sections (1 red, 1 green, 1 blue, 1 yellow), what is the probability of landing on red?

Back

The probability is 1/4.

Front

What is the formula for calculating the probability of an event?

Back

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

Front

What does it mean if an event is described as 'likely'?

Back

It means that the event has a greater chance of occurring than not occurring.

Front

What does it mean if an event is described as 'unlikely'?

Back

It means that the event has a lesser chance of occurring than not occurring.