Probability Concepts and Problems

The video tutorial covers the basics of probability, including how to describe the likelihood of events using a number cube. It explains key concepts such as events, trials, and outcomes, and provides examples to illustrate probability calculations. The tutorial also discusses the complement of an event and how to calculate probabilities using sample spaces. The video concludes with a reflection on the concepts covered.

What is the range of numbers on a standard number cube?

• 1 to 5

• 1 to 6

• 1 to 8

• 1 to 7

How many possible outcomes are there when rolling a number cube?

• 4

• 5

• 6

• 7

What is the probability of rolling a number less than 7 on a number cube?

• 1

• 5/6

• 1/2

• 0

Which event is impossible when rolling a standard number cube?

• Rolling an 8

• Rolling a 5

• Rolling a 6

• Rolling a 3

What is the probability of rolling a number greater than 4 on a number cube?

• 2/3

• 1/2

• 1/3

• 1/6

How is probability expressed on a number line?

• Between -1 and 0

• Between 0 and 2

• Between -1 and 1

• Between 0 and 1

What does a probability of 1 indicate?

• Impossible event

• Unlikely event

• Certain event

• Random event

If an event is unlikely to occur, where is its probability on the number line?

• Close to 0

• Close to 1

• Greater than 1

• Exactly 0.5

What is the probability of rolling a sum of 3 with two number cubes?

• 1/12

• 1/9

• 1/18

• 1/36

How many odd numbers are there in a set of numbers from 1 to 10?

• 6

• 7

• 4

• 5