Finding the Probability of Events with Multiple Possibilities

This video tutorial covers the basics of probability, focusing on theoretical and experimental probability. It explains how to calculate probabilities using examples like a spinner and a bag of marbles. The tutorial also addresses common mistakes in identifying sample spaces and demonstrates how to find the probability of specific outcomes, such as drawing a blue marble or rolling a four or greater on a die.

What is the main difference between theoretical and experimental probability?

• Theoretical probability is based on experiments, while experimental probability is based on reasoning.

• Theoretical probability is what should happen, while experimental probability is what actually happens.

• Theoretical probability is calculated using a spinner, while experimental probability is not.

• Theoretical probability is always higher than experimental probability.

How do you correctly list the sample space for a spinner with two A's, one B, and two C's?

• A, A, B, C, C

• A, B, C, C

• A, A, B, C

• A, B, C

What is the probability of drawing a blue marble from a bag containing three blue, four green, and two red marbles?

• 1/2

• 1/3

• 1/4

• 1/5

What is the sample space for rolling a six-sided die?

• 1, 2, 3, 4, 5, 6

• 2, 3, 4, 5, 6

• 1, 2, 3, 4, 5

• 1, 3, 5, 6

What is the probability of rolling a number four or greater on a six-sided die?

• 1/4

• 1/3

• 1/2

• 2/3