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, where 0 means the event will not happen and 1 means it will definitely happen.

Front

What is a simple event in probability?

Back

A simple event is an event that consists of a single outcome. For example, rolling a 3 on a die is a simple event.

Front

What is the formula for calculating probability?

Back

The probability of an event is calculated using the formula: P(E) = Number of favorable outcomes / Total number of possible outcomes.

Front

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

Back

The probability of getting heads when flipping a coin is 1/2 or 0.5.

Front

What is a sample space?

Back

A sample space is the set of all possible outcomes of a probability experiment. For example, the sample space for rolling a die is {1, 2, 3, 4, 5, 6}.

Front

What is an event in probability?

Back

An event is a specific outcome or a set of outcomes from a probability experiment. For example, rolling an even number on a die is an event.

Front

What does it mean if two events are independent?

Back

Two events are independent if the occurrence of one event does not affect the occurrence of the other event.

Front

What is the probability of drawing a red card from a standard deck of cards?

Back

The probability of drawing a red card (hearts or diamonds) from a standard deck of 52 cards is 26/52 or 1/2.

Front

What is the difference between theoretical probability and experimental probability?

Back

Theoretical probability is based on the possible outcomes in a perfect world, while experimental probability is based on actual experiments and observations.

Front

What is a compound event?

Back

A compound event is an event that consists of two or more simple events. For example, rolling a die and flipping a coin is a compound event.