4.3 Probability and frequency

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• Wiskunde
• Middelbare school
• havo, vwo
• Leerjaar 2

Opening questions

What is the name of this diagram?

A

Tree diagram

B

Network diagram

C

Sample space diagram

D

Systematic diagram

How many options can you choose from if you have 5 pairs of shoes, 6 shirts and 3 pairs of pants?

A

14

B

23

C

33

D

90

With the diagram below, write down the amount of different options to throw a sum of 9 pips

Check for understanding

Rewrite 60% as a decimal number

A

0.40

B

0.60

C

60

D

1.60

Calculate the relative frequency of girls (10 out of 25) in your class.

You toss a coin three times.

Calculate the probability you throw three heads.

You throw a two dice 72 times.

Calculate how many times you would expect to throw the sum of 7.

Lesson recap

Explain 'probability' in your own words

Which of these could be a probability?

A

12 out of 24

B

50%

C

0.5

D

12/24

Put the frequencies in the correct category

Absolute frequency

Relative frequency

23

23/45

5

5/10

Explain the law of large numbers in your own words

Describe how confident you are about the topic of today