Probability Concepts and Calculations

This video tutorial introduces the concept of probability, explaining its definition as the likelihood of an event occurring. It covers how probability can be expressed as a percentage or decimal, and provides real-life examples such as weather forecasts. The video also explains outcomes, sample spaces, and the difference between theoretical and experimental probability. It discusses dependent and independent events, illustrating how the occurrence of one event can affect another. Finally, it covers complements and differentiates between simple and compound events.

What is the probability of an event that is certain to happen?

• 0%

• 50%

• 100%

• 75%

How can probability be expressed?

• As a ratio only

• As a whole number

• As a percentage or decimal

• As a fraction only

What is a sample space?

• A certain event

• An impossible event

• A single outcome

• A list of all possible outcomes

Which type of probability is based on actual experiments?

• Theoretical probability

• Experimental probability

• Classical probability

• Subjective probability

What is theoretical probability based on?

• Possible outcomes

• Experimental data

• Personal opinion

• Historical data

In a dependent event, what happens to the probability of the second event?

• It increases

• It changes

• It decreases

• It remains the same

What is an independent event?

• An event that is certain

• An event that does not affect another

• An event that affects another

• An event that is impossible

How do you calculate the complement of an event?

• Subtract the probability from 1

• Divide the probability by 2

• Add the probability to 1

• Multiply the probability by 2

What is a simple event?

• An event that always happens

• An event with multiple outcomes

• An event with a single outcome

• An event that cannot happen

What are compound events?

• Events that have no outcomes

• Two or more simple events considered together

• Events that are certain

• Events that are impossible