Probability Concepts and Problems

This video tutorial introduces the concept of probability, explaining key terms such as experiment, trial, outcome, and event. It discusses how probability is measured between 0 and 1, using examples like rolling a number cube and flipping a coin to illustrate these concepts. The video also covers probability with spinners and beads, providing practical examples to help understand the likelihood of different events. The tutorial concludes by emphasizing the importance of learning the vocabulary for better comprehension of probability.

What is an experiment in the context of probability?

• An activity with a certain result

• A guaranteed outcome

• An activity involving chance with observed results

• A repeated action with the same outcome

How is probability expressed?

• As a fraction, decimal, or percent

• As a letter

• As a whole number

• As a negative number

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

• 0.25

• 0.5

• 0

• 1

If a number cube has three even and three odd numbers, what is the probability of rolling an even number?

• 100%

• 75%

• 50%

• 25%

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

• 0

• 0.25

• 1

• 0.5

On a spinner with four equal sections, two of which are red, what is the probability of landing on red?

• 25%

• 50%

• 100%

• 75%

If a spinner has four sections and one is yellow, what is the probability of landing on yellow?

• 50%

• 25%

• 10%

• 75%

In a bag with 10 beads (1 red, 4 blue, 5 brown), what is the probability of picking a brown bead?

• 1/10

• 1/2

• 1/4

• 1/5

What is the probability of picking a red bead from a bag with 10 beads (1 red, 4 blue, 5 brown)?

• 1/4

• 1/2

• 1/10

• 1/5

If there are no yellow beads in a bag, what is the probability of picking a yellow bead?

• 1/4

• 1/2

• 0

• 1