Exploring Simple Probability Concepts

Miss Kilburn introduces simple probability, explaining its concepts and real-life applications. She discusses the probability scale, ranging from impossible (0) to certain (1), and provides examples like weather forecasts and lottery odds. The video covers theoretical and experimental probability, highlighting their differences. Miss Kilburn demonstrates simple probability calculations using examples like marbles and spinners, emphasizing the importance of understanding probability in everyday decisions.

What does probability measure?

• The number of possible outcomes in an event

• The likelihood of an event occurring

• The duration of an event

• The accuracy of weather forecasts

What probability value represents an impossible event?

• 0

• 0.5

• 0.25

• 1

What is the probability of flipping a coin and it landing on heads?

• 75%

• 50%

• 25%

• 100%

What does a probability of 1 indicate?

• The event is impossible

• The event is certain to happen

• The event is unlikely

• The event has a 50% chance of happening

Which type of probability is based on theoretical outcomes?

• Conditional

• Absolute

• Theoretical

• Experimental

What is the theoretical probability based on?

• Experimental results

• Predicted outcomes

• Random guesses

• Past outcomes

What is the probability of drawing a yellow marble from a bag containing 3 yellow marbles out of 18 total marbles?

• 3/18

• 1/6

• 1/4

• 1/3

What is the probability of getting a red or yellow marble from a bag containing 9 red and yellow marbles out of 18 total marbles?

• 3/4

• 1/4

• 2/3

• 1/2

What is the probability of rolling a 3 on a six-sided die?

• 1/6

• 1/2

• 2/3

• 1/3

What is the probability of landing on blue in a spinner with 3 blue sections out of 8 total sections?

• 1/4

• 1/8

• 1/2

• 3/8