Theoretical Probability

Front

What is theoretical probability?

Back

Theoretical probability is the likelihood of an event occurring based on the possible outcomes in a perfect scenario, calculated as the ratio of the number of favorable outcomes to the total number of possible outcomes.

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 picking a black or white marble from a bag containing 2 black, 1 white, and 2 red marbles?

Back

3/5.

Front

What does it mean if an event is described as 'as likely as not'?

Back

It means that the event has a probability of 50%, or that it is equally likely to occur or not occur.

Front

What is the difference between experimental and theoretical probability?

Back

Experimental probability is based on the actual results of an experiment, while theoretical probability is based on expected outcomes in a perfect scenario.

Front

If a spinner is divided into 4 equal sections, what is the theoretical probability of landing on any one section?

Back

1/4.

Front

What is the probability of rolling a number 2 or higher on a standard six-sided die?

Back

5/6.

Front

What is the probability of spinning pink on a spinner that has no pink section?

Back

0.

Front

What is an impossible event in probability?

Back

An impossible event is an event that cannot occur, having a probability of 0.

Front

What is a certain event in probability?

Back

A certain event is an event that is guaranteed to occur, having a probability of 1.