Making Predictions Using Probability

In this video, Miss V teaches how to make predictions using probability. The video covers both theoretical and experimental probability, providing examples such as predicting the number of heads in 100 coin flips and the occurrence of a specific number in dice rolls. The video also explains how to use experimental data to predict outcomes in larger trials. Miss V concludes by offering additional resources for reviewing proportions.

What is the main focus of this video?

• Learning about proportions

• Making predictions using probability

• Understanding the difference between theoretical and experimental probability

• Finding the probability of simple events

What is the theoretical probability of getting heads in a coin flip?

• 1 out of 4

• 1 out of 6

• 1 out of 2

• 1 out of 3

If you flip a coin 100 times, how many times would you expect it to land on heads?

• 100 times

• 75 times

• 50 times

• 25 times

What is the theoretical probability of rolling a two on a six-sided dice?

• 1 out of 6

• 1 out of 4

• 1 out of 2

• 1 out of 8

If you roll a dice 90 times, how many times would you expect it to land on two?

• 10 times

• 15 times

• 20 times

• 25 times

In an experiment, a dice is rolled 10 times and lands on five 3 times. What is the experimental probability of rolling a five?

• 1 out of 2

• 5 out of 10

• 1 out of 3

• 3 out of 10

Based on the experimental probability, how many times would you expect to roll a five in 200 rolls?

• 60 times

• 40 times

• 30 times

• 50 times

In an experiment, the letter 'a' is picked 16 out of 30 times. What is the experimental probability of picking 'a'?

• 10 out of 30

• 12 out of 30

• 14 out of 30

• 16 out of 30

Based on the experimental probability, how many times would you expect to pick the letter 'a' out of 150 tries?

• 60 times

• 70 times

• 80 times

• 90 times

What mathematical method is used to solve proportions in these examples?

• Division

• Cross-multiplication

• Subtraction

• Addition