Probability and Counting Principles

The video tutorial covers various probability problems, including spinning odd numbers, flipping coins, and rolling dice. It explains the fundamental counting principle and how to calculate probabilities using multiplication. The tutorial also discusses experimental probability and demonstrates creating a tree diagram to find possible outcomes. The session concludes with a summary of key concepts and encouragement for students to reach out for help if needed.

What is the probability of spinning an odd number on a spinner with numbers 1, 2, and 3?

• 2/3

• 1/3

• 1/2

• 3/3

If you flip a coin, what is the probability of getting heads?

• 1

• 1/2

• 1/3

• 1/4

What is the probability of spinning a yellow on a spinner with three colors, one of which is yellow?

• 1

• 2/3

• 1/2

• 1/3

What is the probability of spinning a six on a spinner with numbers 1 to 5?

• 0

• 1/5

• 1/6

• 1

If you flip a coin, what is the probability of getting tails?

• 1

• 1/2

• 1/3

• 1/4

What is the experimental probability of rolling a number greater than or equal to 3 if it occurred 71 times out of 100?

• 71%

• 80%

• 60%

• 50%

How many options are there for picking a battery if the choices are 1, 3, 5, or 7?

• 3

• 5

• 2

• 4

How many color options are available if the choices are blue, green, red, yellow, and black?

• 5

• 3

• 4

• 6

Using the fundamental counting principle, how many total outcomes are possible when picking a battery and a color?

• 20

• 25

• 15

• 10

How many total outcomes are there when creating a tree diagram for picking a keychain or magnet in blue, green, or red?

• 4

• 5

• 6

• 7