Probability Concepts and Applications

This video tutorial covers Math 7 Unit 8 Lesson 4, focusing on estimating probabilities through repeated experiments. It begins with an introduction to probability using decimals and explores probability through games and experiments. The lesson emphasizes understanding probability over repeated trials, defining sample space, and calculating outcomes. Students learn to plot probability results on a graph and analyze data from experiments. The tutorial also applies probability to real-world scenarios, concluding with a homework assignment.

What is the probability of an event that is certain to happen?

• 0

• 0.5

• 1

• 0.75

Where would you place 0.75 on a number line between 0 and 1?

• Closer to 0

• Exactly in the middle

• Closer to 1

• At 0.5

In a coin toss, what is the probability of getting heads?

• 0.75

• 0.25

• 0.5

• 1

If you roll a dice, what is the probability of getting a number less than 3?

• 2/3

• 1/6

• 1/3

• 1/2

What does relative frequency compare in probability experiments?

• Theoretical probability

• Experimental outcomes

• Both A and B

• None of the above

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

• 1, 2, 3

• 1, 2, 3, 4, 5, 6

• 1, 2, 3, 4

• 1, 2, 3, 4, 5

If May wins by rolling a 1 or 2, what is her probability of winning?

• 2/3

• 1/2

• 1/3

• 1/6

What does a graph of probability outcomes help illustrate?

• Exact outcomes

• None of the above

• Trends over time

• Random guesses

What is surprising about flipping a coin 100 times and getting heads every time?

• It's certain

• It's impossible

• It's unlikely

• It's expected

If a spinner is spun 40 times, what is a reasonable probability for winning?

• 0.9

• 0.65

• 0.25

• 0.1