Experimental Probability Lesson

Experimental Probability

By Neha Gupta

Starter​

Some text here about the topic of discussion

Multiple Choice

4 x 0.2

• 8

• 0.08

• 0.8

• 80

Multiple Choice

3 x 0.6

• 18

• 1.8

• 0.18

• 0.018

Multiple Choice

7 x 0.3

• 21

• 20.1

• 0.21

• 2.1

Multiple Choice

5 x 0.6

• 3

• 30

• 0.30

• 0

Multiple Choice

4 x 0.12

• 4.8

• 48

• 40.8

• 0.48

Multiple Choice

3 x 0.03

• 9

• 0.09

• 9.00

• 0.9

Multiple Choice

7 x 1.1

• 77

• 7.7

• 0.77

• 7.07

Multiple Choice

1.2 x 5

• 60

• 0.6

• 0.60

• 6

Multiple Choice

0.4 x 0.2

• 8

• 0.8

• 0.08

• 0.008

Multiple Choice

0.8 x 0.7

• 0.56

• 56

• 5.06

• 5.6

​Topic: Experimental Probability

LO: ​To use experiments to calculate experimental probability

​Experimental and Theoretical Probability

​Experimental probability doesn't always match theoretical probability.

Without conducting any experiment, if I ask you what is the probability of rolling a 6 on a dice?​

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Your answer will be 1/6

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This is called theoretical probability​

​Experiment

​Roll a dice 24 times and record your results in a table like this. You can draw the table on your whiteboard.

Use this link for online dice:

https://freeonlinedice.com/​

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Open Ended

Based on your table, calculate the experimental probability of rolling a 6. Give your answer in decimals. Refer to the image for formula

Open Ended

Poll

• Yes

• No

• Maybe

• I don't know

Open Ended

Give your answer in decimals. Use calculator

Open Ended

Give your answer in decimal. Use calculator

Open Ended

Give your answer as a whole number.

​Blue Cars

• The probability of blue car is 0.2

• If 10 cars go past, I expect to see 10 x 0.2 = 2 blue cars

• If 40 cars go past, I expect to see 40 x 0.2 = 8 blue cars

• If 55 cars go past, I expect to see 55 x 0.2 = 11 blue cars

​Main task (Day 1)

Open Ended

Open Ended

Open Ended

Open Ended

How confident you feel in finding experimental probabilities now?

Open Ended

How many questions out of 3 you got right?

​Main Task(Notebook Work)

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If you got all three questions right, start with your designated task, if not then start with Task A and then level up.

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Learner's Book - Exercise 13.3

Page 272 -275

​Task A - Q.1 to 5

Task B - Q.2, 3, 4, 5, 7

Task C - Q.5 to 10

Challenge - Q.11​

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Open Ended

Is this a good experiment?

Open Ended

How could this be improved?